Built in Dr. Eggman's own image and piloted by the doctor himself, this robot defends the Death Egg space station. It is well armoured and takes several more hits to destroy than the Eggmobile ever did. It can be struck in the head or chest, attacking anywhere else will result in the player's (Sonic's) death. It starts off its attack simply by marching a few steps toward Sonic, then uses its jet pack to fly off-screen. A targetting reticule will appear over Sonic, which he cannot shake until Eggman is about to land. Eggman will land where the reticule is and will then perform a different attack depending on whether Sonic is in front of the robot or behind it. If behind, the Giant Mech will launch two or three bombs that explode a second after landing. If Sonic is in front of it, the robot will lean forward and launch its arms like rockets that will quickly blast forward and then return to the robot. Because there are no rings in Sonic 2's final stage, a single hit will kill Sonic immediately. The Death Egg Robot takes 16 hits to defeat.
Sonic 4: Episode IEditA modified version of the Death Egg Robot appears as the final boss in this game. This version of the mecha is much stronger, taking several more hits to defeat and adjusts its strategy as the battle progresses. After being hit 16 times, the robot appears to malfunction and crackles with electricity, making it impossible for Sonic to attack it head on. It staggers and jumps about and Sonic must quickly run beneath the robot as it jumps. Next, Eggman attacks by launching the robot's arms, but rather than fly directly at Sonic, the arm will perform a wide circling motion before flying up and off the screen. A second later, it will drop down and plant itself in the deck. Sonic can then attack the arm, sending it hurtling back at the robot and knocking out its electrical field, giving Sonic the opportunity to attack the robot again. After about 6 hits, the Death Egg Robot adjusts its strategy again and fires lasers from a compartment in its head. When it is down to one more hit, the robot will fly up and off the screen, then seconds later drop down again to crush Sonic. When the robot strikes the deck, the whole floor crumbles away and Sonic must jump and strike the robot's head with a homing attack, otherwise he will fall to his death.
Sonic GenerationsEditIn the console versions of Sonic Generations, the Death Egg Robot appears as the main boss of the Classic Era. Classic Sonic fights it aboard the Death Egg, after Sky Sanctuary, representing Sonic the Hedgehog 2.
Additionally, this version is much taller than its Genesis counterpart, and features a sturdier chassis that cannot be damaged by Classic Sonic's normal attacks (apart from several weak spots located in its posterior and head). Wheels also appear to be installed in its feet, giving it a higher level of maneuverability. The antennae seen on the head of the original model are also absent and the arms appear to have been redesigned to launch telescopically and are also much bulkier to allow for the rotary spikes on their ends. Even with these attachments, the boss fight is much easier than it was in Sonic the Hedgehog 2, due to the presence of rings.