The Super Eggrobo Z (スーパーエッグロボZ Sūpā Eggurobo Z?) is the penultimate boss of Sonic Advance 2. It is controlled by Dr. Eggman and the player faces off against the Super Eggrobo Z in the end of XX stage after defeating all of Eggman's recycled boss machines.
Super Eggrobo Z is a giant robot that hardly moves during the boss battle. It is mostly gray and orange with black and yellow stripes. It has a red stripe on the back of its head.
Unlike the other boss battles in Sonic Advance 2, this one takes out at the arena with full of spikes on the ceiling of the arena. Super Eggrobo Z itself stands menacingly (but totally immobile) at the right edge of the arena. Dr. Eggman fires off the mech's arms like projectiles, which are easily avoided. The player is also able to hit the arms and after hitting each arm six times, the arms get destroyed.
Super Eggrobo Z's most used attack is to summon below the platform pillars to rise up from the middle of the arena, which the player can use to reach its vulnerable head. The player has to time their jump, because staying on it for too long will cause the player's character to get crushed by spikes on the ceiling of the arena. But time his attacks so as not to leap into his giant, invisible eye laser. After hitting four times, Super Eggrobo Z starts increasing the speed of its attack patterns. After another four hits, the machine finally gets destroyed completely, and the XX Space Station begins to crumble.
If the player hasn't got all Chaos Emeralds from Special Stages, the game ends with ending cutscene and end credits after defeating Super Eggrobo Z and clearing XX stage. However if the player has got all Chaos Emeralds, the game opens True Area 53 for playable after clearing the XX stage. True Area 53 features final boss of the game with Super Sonic once again being playable.
- It is the successor of the original Super Eggrobo.
- This boss was dubbed the Egg Bot in Prima's Strategy guide.