- Frequently-used vehicle. Eggman usually connects it to his bigger robots so he can escape. It is a small half-open egg-shaped vehicle. It is named Egg-o-matic in comics and cartoons. In Sonic X it was upgraded with three pillars, one heading upwards, another, left, and another right.
- Floating vehicle swinging a wrecking ball. Platforms were placed on either side of the screen so Sonic could reach Eggman. Official name is "Checker Wrecker Ball". (Green Hill Zone)
- Floating vehicle that dropped fireballs. There was a gap of lava in the center of the screen; Eggman's fireballs would spread across the side that they were dropped. (Marble Zone)
- Floating vehicle with a downward spike. Sonic was on a bridge made of blocks that Eggman would remove one by one. (Spring Yard Zone)
- Robotnik was in his Egg-O-Matic without any extra attachments. He would move through the hazardous (and flooding) labrinth trying to escape. To win the act, Sonic would just have to follow Robotnik (Sonic could attack Robotnik, but that doesn't speed up the act) until he reaches the Prison Egg.
- Floating vehicle that dropped spikeballs that would eventually explode. There were three see-saws on the ground. Sonic had to either launch a spikeball up at Eggman, or use a spikeball to launch himself up. (Starlight Zone)
- 4 Robotic pillars that would attempt to squish Sonic, two at a time, with one of the pillars seating Eggman. A nearby device would also fire electrical attacks at Sonic after the pillars withdrew into the floor or ceiling. The challenge is that Sonic has no Rings for protection. (Final Zone) But when De-bug mode is used sonic can't be harmed.
''There are no Rings in any of the boss stages. Also, some of the fights are set up differently between the two versions.''
- Floating vehicle that hovers above Sonic's head and occasionally comes down to Sonic's level to ram him. In the Master System version, Sonic has to wait for Eggman to descend before he can attack. In the Game Gear version, the smaller screen makes it so Eggman is always in attack range. (Green Hill Zone)
- A submarine that surfaces periodically to shoot a spread shot at Sonic. The Master System version has the fight taking place on a single island, which Sonic can't fall off of. The Game Gear version takes place on a ramped bridge instead. (Bridge Zone)
- A floating vehicle thad drops exploding cannonballs on a ramped vine. Sonic has to dodge the cannonball as it rolls back and forth, all without falling off the vine. (Jungle Zone)
- A submarine that shoots energy bullets from below Sonic and position-tracking torpedoes from above. The fight takes place underwater, but Sonic can't drown in this stage. (Labyrinth Zone)
- The Sky Base, a floating blimp that serves as Eggman's escape vehicle after he flees the Scrap Brain Zone. Sonic has to board the blimp and get to the control room, all without the benefit of a single Ring.
- A ceiling-mounted cannon that launches homing energy balls at Sonic. The weak spot is Eggman's control tube, which has its own defenses as well (the Game Gear version uses a trio of floor-mounted flamethrowers, while the Master System version uses an electric wall that flickers on and off as it sweeps back and forth across the room). (Sky Base Zone)
- All-terrain Vehicle with a drill in front. The drill would be fired as a desperation attack when Eggman was down to his last hit. Unlike other vehicles, this one is boarded via a Helicopter which becomes the cockpit (Emerald Hill Zone)
- Floating vehicle that would collect chemicals from the poisoned water underneath and then drop the chemicals on his enemies. (Chemical Plant Zone)
- Floating vehicle with a giant hammer. The hammer would hit totem poles which would, in turn, shoot arrows. Unfortunately for Eggman, the heroes could use the arrows as platforms to reach him. (Aquatic Ruin Zone)
- A big floating vehicle with an electric claw coming out of the bottom. This claw would also drop red spike balls that explode. The fight was set in a giant pinball machine. (Casino Night Zone)
- A submarine that emerged from lava and shot fireballs. This fight is similar to the one in Marble Zone, except Eggman is coming from the lava instead of from above. (Hill Top Zone)
- A floating vehicle that could drill though rock. This would cause an earthquake that would make rocks fall from above. Normal rocks did no damage, while pointy ones would do harm. (Mystic Cave Zone)
- A submarine that would alternate between shooting spikes and deploying a mechanism which could shoot lasers. (Oil Ocean Zone)
- A floating machine surrounded by "eggs". Hitting Eggman would turn an egg into a mini-Eggman, which could be destroyed with any simple attack. When all the eggs were destroyed, the vehicle could shoot fairly large lasers. (Metropolis Zone)
- A powerful ceiling-mounted laser controlled by a nearby computer. It moves around until it prepares to fire. There are three floating platforms (with spikes on the bottom, so watch where you jump) which allows our heroes to hit it. (Wing Fortress Zone)
- A huge battle suit, with spikes for fingers, and a jetpack that could launch rockets. The spiked hands made the battle suit difficult to hit (Especially when using Sonic & Knuckles connectivity due to Knuckles ' jumps being lower than Sonic and Tails '.), especially since there were no rings in the level, and players had to fight what appears to be Mecha Sonic beforehand. (Death Egg Zone)
- The Wing Fortress, a giant airship that served as the second-to-last stage. This airship was chased during Sky Chase Zone, and shot down Sonic's airplane, the Tornado, at the beginning of the Wing Fortress Zone. (Sky Chase Zone, Wing Fortress Zone)
- A spaceship used by Eggman to fly from the Wing Fortress to the Death Egg. When Eggman escaped in it at the end of Wing Fortress Zone, Sonic chased it and held on to it, taking him to the Death Egg Zone. (Wing Fortress Zone)
- The Death Egg , an armored space station similar to the Death Star from Star Wars . The Death Egg was the final stage, where you fought the two final bosses (mentioned above). The Death Egg Zone had no Rings, to make the final bosses harder. (Death Egg Zone)
''There are no Rings in any of the boss stages.''
- The standard Eggmobile with a claw on the underside. Used to carry Sonic to the boss arena. (Underground Zone) A similar vehicle is seen in the opening movie, and is used to capture Tails, but it's probably not the same one.
- A wormlike robot with large pincers that sits on the bottom of a steep hill. Balls dropped by Eggman bounce down the hill which Sonic must avoid. These balls then bounce down to damage the robot. Eventually Eggman will run out of ammo and try to ram Sonic, but him doing so will destroy the robot. (Underground Zone)
- Small birdlike robots that bounce around trying to hit Sonic. (Sky High Zone)
- A very large goose robot that appears after Sonic desroys all of the bird robots and eggs. It shoots homing fireballs from its beak, but is slow and easy to hit. (Sky High Zone)
- A seal robot that inflates explosive balls to throw at Sonic. It cannot be jumped on because the seal will just bounce Sonic on its nose. Sonic must strike while it is inflating a ball. (Aqua Lake Zone)
- A wild boar robot that somewhat resembles a sumo wrestler. It attacks by rolling, smashing and jumping. The weak point is the top of its head. (Green Hills Zone)
- Another robot that resembles a boar, but with spikes on the back. It aggressively tries to ram Sonic, and if it misses it will smash againt the wall and dislodge harmful debris from the ceiling. When it collides with the wall the spikes will retract which is the only chance Sonic can damage it. (Gimmick Mt. Zone)
- A robotic version of Sonic, possibly the predecessor of the one in Sonic 2 for Genesis. It uses spin attacks as well as a robotic arm that extends from its stomach. Howvever, it is weakly armored and the spin attack is worthless due to it being completely blunt (Sonic can deflect it with his own Spin Attack). (Scrambled Egg Zone)
- A cage-like arena with Eggman in a glass booth. Inside the booth Eggman can lauch all kinds of projectiles at Sonic as well as totally electrify the arena. When this happens Sonic must jump inside a tube that runs through the outside of the arena until it is safe to go back out. Since Eggman unpredictably fires his weapons everywhere it is incredibly difficult to damage his booth. When it is destroyed Eggman will teleport away and leave Tails for Sonic to rescue. (Crystal Egg Zone)
- A large mech that has bumpers on both of its arms, and spiked feet. It came in two different colors, one gray-blue and pink (Good Future), and one gray and red (Bad Future). (Palmtree Panic)
- A machine at the top of a pinball area that drops bombs to slow down Sonic, where he has to make to the top of the pinball area. (Collision Chaos)
- A floating vehicle that Sonic has to chase down an endless path down, then when Sonic hits Eggman 4 times, a path to the water area opens, then you reach the boss. Eggman has bubbles surrounding him as a shield, where Sonic has to break them, then hit Eggman's vehicle to defeat him. (Tidal Tempest)
- A large piston (resembling the final boss from Sonic the Hedgehog), when Sonic hits it, it falls down, as it is being scraped by the moving belts. It drops bombs from the ceiling, and there is a spike vehicle at the end of the belt. It comes in two colors, purple in the Good Future, and Green in the Bad Future. (Quartz Quadrant)
- A floating vehicle that has a driller at the top. It would drill through the checkered ceilings, causing pieces to fall off. Sonic then has to jump on one of them as the electricity starts up, to ride the piece to the next floor. At the third floor, spikes would fall upon Sonic. It comes in two colors, purple for Good Future, and gray for Bad Future. (Wacky Workbench)
- A race against Metal Sonic (Stardust Speedway) while being pursued by Robotnik, who fires a beam below him, killing you if you slow down for too long. You must evade Robotnik and beat Metal, or you get trapped at the end and die. The racetrack's appearance in Bad Future is a dismal futuristic highway. This boss and concept- and even the Sonic CD signature "Super Peel-Out" move- were featured in the Archie Comics Sonic The Hedgehog series.
- An orb with Eggman seated inside it, surrounded by 4 wing-like pieces which shot out at Sonic and spun around. Once they were off of the machine, Sonic could hit the weakspot, the orb. (Metallic Madness)
- A new (incomplete) Death Egg, named the Death Egg II. It is identical to the original, but with large pillars sticking out and holding what seems to be more rooms. However, it gets destroyed before being completed, much like the second Death Star in ''''.
- A strange UFO-looking vehicle. It has a laser on the bottom with which he clones the character the player is using when they get to the fight which is normally against their character.
- A walker with which he fights the player after they defeat Metal Sonic. The player must defeat him in 15 seconds, or else the Death Egg II explodes with them inside. The player must only win one round, and they only get one chance to fight him.
- A large airship known as "The Flying Battery" which players had to run from as it dropped enormous bombs from its underside. (Angel Island Zone)(there seems to be a whole fleet of these shown in the background when you first encounter the flying battery , although you only battle one eggman seems to mass produce them)
- ---In '' Sonic & Knuckles '', the Flying Battery is an actual level.
- A big, metallic, floating vehicle that could move underneath waterfalls and shoot fireballs that can burn bridges as well as the player. (Angel Island Zone)
- A floating vehicle that could drop bombs, which had the side effect of making the shallow pool of water rise and act as a platform for the player to retaliate with. The vehicle also had a propeller that could create a whirlpool. (Hydrocity Zone)
- Another floating vehicle with a drill that could penetrate rock (see Mystic Cave Zone). In this confrontation, Eggman actually uses the drill to make the ground move up and down, and at the end of the level, remove the ground entirely. If the player is playing with Sonic, Tails will lift him, and Sonic will have to hit Eggman without touching the drill. If Tails is alone, he has to attack Eggman with his tails. (Marble Garden Zone)
- A vehicle piloted by Egg-Robo that shoots a spiked chain, and then uses the chain to pull itself across the screen. This is an alternative boss for Knuckles since he has no partner to let him fly. It requires Sonic & Knuckles connectivity. (Marble Garden Zone)
- A floating vehicle with conductors that drops a massive ball and uses conductors to make an electric field that pulls the heroes towards it. (Carnival Night Zone)
- A floating vehicle that can spray ice attacks. This vehicle also has a platform that can be climbed to reach him. (Ice Cap Zone)
- A control deck where Eggman would sit and use a cannon to fire large metal balls which would either roll across the ground or be fired up at the target (namely Sonic) (Launch Base Zone).
- A tall vehicle with spikes and laser turrets. Lasers fall off as it gets damaged (Launch Base Zone)
- A large floating vehicle with a spiked top and large hands near the bottom. The large hands will grab enemies pound them to the ground. The machine swoops across the screen, and must be hit in the center to take damage (since the top and bottom are guarded by spikes and hands). (Launch Base Zone)
- A gigantic version of the Bane Motora (Spring-Motobug) enemies found earlier in the level. It cannot be damaged by jumping on its back due to the spring, so Sonic or Tails must roll-attack its face. (Turquoise Hill Zone)
- A blue caterpillar-like robot that stands like a tower. It attacks by throwing its body sections. The visible cranium is its weak point. (Gigalopolis Zone)
- An Eggman-resembling robot that bounces around on a spring on its underside. It is also armed with a machine gun. (Sleeping Egg Zone)
- A monkey robot with a huge energy cannon on its back. The head is the weak point. (Mecha Green Hill Zone)
- A huge metallic sphere that attacks by bouncing and shooting. Soon the top half will break and it will scatter bullets everywhere. (Aqua Planet Zone)
- A chicken robot with Eggman in the cockpit. It attacks with ricocheting bullets and energy cannons. It soon becomes a streamlined plane-like craft, which tries to swoop down on Sonic. (Electric Egg Zone)
- A fast floating vehicle that shoots fireballs while racing to the right, forcing the player to also run to the right, avoiding spiked logs while doing so. This vehicle was also equipped with a Satellite Dish , but it gets damaged after the first hit. (Mushroom Hill Zone)
- A vehicle that latched onto a steel beam with spiked "hands", which he could use to swing around the beam. This vehicle also had a flamethrower that shot upwards. (Flying Battery Zone)
- A robotic Mummy with spiked hands, that could advance slowly. Hitting the mummy would reveal a standard floating vehicle underneath, which could shoot a laser. (Sandopolis Zone)
- Another submarine that can dive under lava (see Hill Top Zone). This machine can make the lava itself change slope, while Sonic and/or Tails would have to jump between platforms that floated on the lava. The submarine shot spikeballs, which would slide right into the sub, meaning that Eggman effectively damages his own machine. (Lava Reef Zone)
- A colossal battle suit (possibly an upgrade of the one in Sonic 2) that is about 100 times larger than Eggman himself. Equipped with hands that can be used to squash enemies (though a slow attack), a nose that shoots fire, and a huge laser beam powered by the Master Emerald. (Death Egg Zone)
- A big spaceship (also known as the Doomsday Device, hence the Zone name) that shoots homing missiles at Super Sonic. Unfortunately for Eggman, the missiles can be tricked into hitting the ship itself. When the ship is destroyed, a battle suit appears. (Doomsday Zone)
- A new battle suit (slightly smaller than the one in Sonic 2) that was inside the spaceship mentioned above. The suit flies away from you while shooting small, thick missiles and spiked mines at you.
- Eggman's Egg Mobile appears a few times with a massive claw that is used to pick up objects without damaging them. Eggman uses this device to steal the Master Emerald twice and Egg Robo uses it to capture Knuckles .(It also has the ability to use metallic tentacles to give an electric shock to prevent his foes from clinging on.)
- A large flying turtle robot that does not attack Sonic, but smaller turtle robots patrol the lower ground. Sonic must utilise the springs on their backs to attack it. (Great Turquoise)
- A robotic train. Sonic starts at the end and must run to the cockpit. There are many gaps and enemies on the way, though. When Sonic reaches the cockpit a cannon starts firing at him, which Sonic must destroy. (Sunset Park)
- A red caterpillar robot that resembles the blue one in Sonic Chaos. It hangs from the ceiling and swings at Sonic. The head is the weak point, but afiter it blows up Sonic must dodge its flaming pieces. (Meta Junglira)
- A huge floating penguin that attacks by throwing penguin bombs. It can only be damaged from the side. (Robotnik Winter)
- An orb-like submarine with Knuckles in the cockpit. He attacks with bullets and balls. Tails has an advantage over Sonic, since he starts the battle in the Sea Fox. (Tidal Plant)
- Metal Sonic. He attacks with energy blasts and also swoops on Sonic. (Atomic Destroyer)
- A cylindrical vehicle with a spring on the bottom and Eggman in the cockpit. He attacks by bouncing. Eventually it breaks to reveal a flamethrower and several gun weapons. Finally it builds into a cage-like arena with laser beams that go off in a pattern. Eggman will circle the outside and pass through a tube which is the only chance he can be damaged. Sometimes he stops to fire a huge laser blast that cannot be avoided, so it is best if Sonic has a lot of rings. (Atomic Destroyer)
- A large mechanical scorpion/spider (the "Scorpius") that would lose its tail after a number of hits. (Toxic Caves)
- A boiler chamber infested with little robots that would retreat after one of them perished, only to appear again later. (the "Robobolier" - Lava Powerhouse)
- A chamber that would repeatedly send Badniks to stop Sonic from destroying it. (The Machine)
- A spaceship with Eggman inside of it. Sonic would have hit himself onto the windshield and make it crack and break to keep Eggman from escaping. (The Showdown)
- A flying machine that would drop a spiked ball and come down to pick it back, from which point Sonic could attack him. (Green Grove)
- A grey sphinx that was attached to the wall and would throw its paws down trying to smash Sonic. Sonic would have to jump onto the paw and be carried up where he could jump onto the windshield of the machine. (Rusty Ruins)
- A flying mech with two mini-paws that can chase Sonic into the arena's spikes. (Sping Stadium)
- An ice shooter that can freeze Sonic into a large "hedgehog-sicle" and drop snowman mines. (Diamond Dust)
- A machine with tubes around it that would shoot fire out at Sonic. Eggman sat in the middle in the machine's cockpit. Sonic would have to attack this to defeat the machine. (Volcano Valley)
- A standard floating vehicle floating above a treadmill. The vehicle can launch bottle rockets and spikes travel down the treadmill. Sonic had to jump up the treadmill to hit Eggman once he descends low enough to fire bottle rockets. (Gene Gadget)
- A 3-stage machine that would try to crush Sonic, shoot flames at Sonic and shoot ricocheting bullets at Sonic. Sonic would have to attack lightbulbs that were around the machine once they began to glow. (Panic Puppet)
- A multi-purpose machine that would remove tiles from the floor, try to ram Sonic or shoot projectiles. Seems to be a Mecha-Robotnik Mk II of sorts, an enhanced version of the Sonic 2 final boss. (Final Fight)
- Egg Hornet. Capable of shooting missiles and ramming itself in the ground in an attempt to hit Sonic or Tails.
- Egg Viper. Shoots bombs, lasers, and spinning discs. Sonic can bounce of sections of the Egg Viper's tail or ride the spinning discs to get within attacking range.
- Egg Walker. Can shoot missiles and bombs and on occasion, use a flamethrower. It can also stomp its feet to create shockwaves on the ground. Its weakspots are clearly lit.
- Egg Carrier. A huge airship, where a few of the game's levels and bosses take place. It eventually crashes into the sea. The Egg Carrier serves as an Adventure Field and hosts the levels Sky Deck and Hot Shelter while including the bosses Chaos 6, E-101 Beta mkII, and Zero.
- Egg Carrier 2. The "backup" Egg Carrier. Lasts only a few seconds before being destroyed by Perfect Chaos .
- Eggman's mobile is used for many purposes in this game. It has a smaller version of the Grab Claw from Sonic And Knuckles that can work at multiple angles, It can release a sleeping gas that knocks Sonic and Tails out cold in seconds and Eggman attempts to use a hidden mine device to aid Chaos 6 against Sonic. (The irony of it was that Sonic used the mines to defeat Chaos 6 in the first place.)
- A walking machine with a Volkan Cannon that can shoot regular ammo, a missile launcher, lock-on capabilities, and punching glove.
Upon finding certain items, the standard Volkan Cannon becomes a Bazooka, capable of destroying steel crates, the standard lock-on missile becomes a Laser Blaster, capable of "splash damage", and a Jet Booster, giving it the ability to hover in mid-air.
In 2-Player Mode, it's also equipped with a rocket launcher and a laser cannon. The players can control Eggman and his vehicle when they choose the Dark side of the story.
- The Egg Golem, a large rock-formed robot with a facial build similar to the Sphinx , which he uses to guard the enterance to his spaceship hangar. It is appearantly controlled by the small cylindrical mechanism on its head. After Sonic pounces on this mechanism, it turns and Robotnik must take it on--It is the only boss that both the Hero and Dark sides both face. Rather than a vehicle, this is seemingly a numberless E-Series robot.
- As in Sonic And Knuckles , Eggman's Egg Mobile is equipped with the Grab Arm. However, Knuckles smashes the Master Emerald to protect it from being stolen(Possibly he was trying to avoid being electrocuted as in Sonic And Knuckles ).
- Egg Hammer. A car armed with a hammer, it swings back and forth in a 180 degree arc while the machine drives forward. (Neo Green Hill Zone)
- A machine that jumps around with a spring on the bottom, similar to one seen in Sonic Chaos . (Secret Base Zone)
- A round orb that goes through tubes along with a painful decoy. (Casino Paradise Zone)
- A drilling machine that sits on the ceiling, causing icy stalactites drop on Sonic, but they can be used to hit Eggman and get air. (Ice Mountain Zone)
- A machine that moves along a chainy bridge that shoots orbs of energy. (Cosmic Angel Zone)
- An orb with a bomb launcher, an extendable hand and a laser cannon. (X Zone)
- Super Egg Machine. A typical Eggman-looking mecha that attacks with its spiky hands while shooting balls at Super Sonic which captures him if he hit them. (Moon Zone)
- Egg Hammer II. A car armed with a hammer and fist, the fist does nothing, but holds Cream and Cheese captive when Sonic first fights it. After its distruction, the fist shoots into the sky and blows up, releasing Cream and Cheese. (Leaf Forest)
- Egg Bomber Tank. A rounded tank that shoots bombs, the cannon breaks off, at which point the bombs will be weakly lobbed instead. (Hot Crater)
- Egg Totem. A large totem like machine, with three rounded, spiked sections, which can separate and are armed with small cannons. The first time you fight this, Tails will be tied up and dangling from a hook on the end of a metal rod. After its destruction, the cords snap and Tails is unlocked as a playable character. (Music Plant)
- Aero Egg. A flying vehicle with a long tail. It drops missiles, and it can only be reached by bouncing off the platform at the end of the machine's tail. (Ice Paradise)
- Egg Saucer. A large wheel with three components on it, the cockpit, a cannon (which can be destroyed), and a hand that can deal a one-hit kill. The first time you fight this, Knuckles will be piloting it due to him being tricked by Eggman. After its destruction, a burnt Knuckles chases Sonic and shouts at him. (Sky Canyon)
- Egg-Go-Round. A machine riding on a rail with four platforms attached to it. The cockpit shoots projectiles, 2 platforms spin rapidly ocassionaly, while the other two grow spikes. (Techno Base)
- Egg Frog. A machine on 2 long legs, it can shoot explosives up and down, you can switch your gravity from up and down in this battle. (Egg Utopia)
- Egg Bot. A giant mecha (similar to the one from the end of Sonic Advance) that can shoot lazers and punch with destructible rocket fists. The floor has platforms which raise to the spiked ceiling. (XX)
- A snake-like machine which can shoot many shots off at once, it is also armed with missiles which have to be deflected into the machine by Super Sonic. The tail also holds an ice beam capable of freezing Super Sonic temporarily. The whole thing can curl up into a ball to roll into Sonic. (True Area 53)
''Eggman's machines are all co-piloted by Gemerl''
- Another hammer machine. This time Eggman pilots the hammer's head, which is connected to a base which Gemerl is in. (Route 99)
- A completely round machine. It rolls around trying to crush Sonic. Its only weak spot is the cockpit. (Sunset Hill)
- A machine on two long legs. It jumps up and lands trying to crush Sonic. (Ocean Base)
- A giant Jack-in-the-box . Eggman comes out of the front; after hitting him, several different things (operated by Gemerl) pop out of the top. (Toy Kingdom)
- A machine on a continually rising track; the objective is to climb up avoiding Eggman, while also trying to make the platforms fall on him. (Twinkle Snow)
- A round machine armed with a cannon that can aim in a 180-degree arc, the cannon balls must be attacked and made to bounce back into Eggman. (Cyber Track)
- A machine on a very springy track (รก la Sonic Advance 1); one must make it bounce and attack the weak underside. There are pipes at the sides of the room that will lead to the bottom of the track (with reversed gravity). There are also spikes on the ceiling and floor of the room you battle in (Chaos Angel)
- A large mecha with hands separate from its body. The cockpit is the weak point, but it cannot be reached without an extra boost. The hands tries to punch you, slam you, and shoot red bouncing mines at you. (Altar Emerald)
- During the final battle with Gemerl in Nonagression, Eggman just flies his normal vehicle, waiting to be thrown around by Super Sonic to reveal Gemerl's weak point.
- Egg Hawk. A giant bird like jet, equipped with rotary guns that can only be fired when on the ground. Two Egg Pawns sits under the wings, equipped with machineguns. To defeat this vehicle, attack when Eggman spins on the ground or attack when you are chasing him. (Ocean Palace)
- Egg Albatross. A more advanced Egg Hawk, equipped with a balloon for flight, laser cannons, launchers for spiked balls, and four additonal Egg Pawn machinegun seats. To defeat this vehicle, get rid of the launchers, and the balloon, and Eggman is back to the Egg Hawk. (Bullet Station)
- Egg Emperor. A giant knight-like robot suit which is the final boss for each team's story. It can shoot missiles and make shockwaves with its sword. If you're too far away, it'll charge you. Its weak spot is the orb in the center of its body. It also holds a large shield in its left hand. (Final Fortress)
The Bingo Highway and Mystic Mansion bosses are endurance fights against multiple waves of robots, while the Power Plant and Lost Jungle bosses pit two character teams against each other.
- Egg Breaker. This robot somewhat resembles the Egg Emperor from Sonic Heroes, except its right hand is a giant spiked ball, used to try to crush Shadow and create shockwaves. It also has the ability to leap considerable distances, fire horizontal arrays of bombs, shoot laser beams with its eyes and throw its spiked ball (it quickly generates a new one). (Cryptic Castle, Mad Matrix, Iron Jungle)
- Egg Dealer. This robot has four rigid legs which it stands on. (It is unknown if these legs have wheels or hover pads on the bottom.) It also has slot reels on the front of its body, which can be stopped individually by using the homing attack on the buttons below them. Unlike with most Eggman vehicles, the cockpit and body of this machine are invulnerable to most attacks. Shadow can only damage it by stopping the reels so that it bombs itself or fires a volley of missiles at itself. Shadow's Chaos Blast power is also effective. These powers are known, respectively, as Bomb Fever, Missile Fever, and Shadow Fever. (Lava Shelter, Black Comet Hero Side, Cosmic Fall Dark Side) The attacks it can use are:
: - The machine launches a volley of six missiles that target Shadow if launched by Eggman and target Eggman if launched by Shadow
: - The machine drops explosive red spheres. If Eggman executes the attack, the Egg Dealer continues moving around the arena dropping bombs. If Shadow executes the attack, the Egg Dealer trips and blows itself up.
: (Eggman Only) - Summons a couple of spear-weilding Egg Pawns.
: (Shadow Only) - Causes a massive amount of Rings to appear in the center of the arena.
: (Shadow Only) - Maximizes Shadow's Dark Gauge.
- Egg Balloon. This is a massive blimp used by Eggman to regroup from the Black arms. It is a striking resemblance to the middle section of Egg altabross which uses the same attack (although the Egg blimp has no propeller) and can also seperate itself when damaged.When it was put to use however , his retreat to the base was made difficult due to G.U.N , Omega and Shadow himself.
''Note that Eggman and his new counterpart from Blaze 's dimension, Eggman Nega, both uses the same vehicles, they just have slightly different color schemes.''
- An Egg Viper-like machine that attempts to stomp you with its head, which is the boss' weak point. (Leaf Storm)
- A Loch Ness Monster robot that is fought in a 2.5D circular arena. (Water Palace)
- A dung beetle that rolls and shoots balls in yet another 2.5D arena. (Mirage Road)
- A machine with two arms fought in the game's last circular arena, one holding Eggman/Eggman Nega and the other holding a ball that must be hit to bring Eggman down to you; it can electrify itself and shoot lightning. (Night Carnival)
- Egg Viper 2.Like the other one but can stomp you 3 times instead of just 1. (Huge Crisis)
- A bird robot that can shoot bullets from its wings and use other physical attacks that are typical for a (huge) bird. (Altitude Limit)
- Yet another gigantic battle suit. (Unknown... That is the name of the area where it is fought.)
- A machine controlled by Eggman ''and'' Eggman Nega that bears some resemblance to the vehicle used in True Area 53 in Sonic Advance 2.
- E-Rider. Eggman's sole bike vehicle, which he uses to ride most often.
- E-GearG. A vehicle created by Eggman that E-10000G (a playable robot) rides.
- E-GearR. A vehicle created by Eggman that E-10000R (another playable robot) rides.
- Egg Fort 1. A giant warship with a drill on the front, used by Eggman for the first part of Sonic X and equipped with various weapons. Later abandoned, but recovered and put to use by the Guardian Unit Of Nations against Eggman.
- Egg Fort 2. A grey warship composed of three smaller vessels, turns into E-99 "Eggsterminator" .
- Egg Giant-Makan. A vehicle modeled after a pirate ship, equipped with a massive laser cannon and missiles. Destroyed by GUNfort 1.
- Grand Egg Imperial. A combination of Egg Forts 1 and 2 and the Egg Carrier, used in the final episodes of Sonic X season 1. It was equipped with a massive arsenal of lasers and missiles, but was nonetheless destroyed by Super Sonic .
- Crimson Egg. Giant spaceship equipped with warp drive, missiles, lasers, and other features.
- Eggmoon. A metal copy of the moon which can cause artificial eclipses.
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