Hyper Eggrobo

The Egg Terminator is the boss of Altar Emerald, and the final boss of Sonic Advance 3.

After Gemerl is defeated, Dr. Eggman uses a giant machine to try and get rid of Sonic and his friend for good. The Egg Terminator will attack by slamming its hands on the ground, puncing his opponent, and bouncing three balls off of his hands. The robot's weakness is its head, and in order to get up there, the player can jump on his hands as they move up after smashing the ground, or jumping on the balls until they reach the head. After six hits, Eggman will escape with a damaged Gemerl.

If the Chaos Emeralds have not been collected, then the game will end with Omochao taking a picture of all of Sonic's friends who came to the altar to celebrate their victory. But, if the Emeralds have been collected, Gemerl will go haywire and use them to transform into his strongest form, which Super Sonic and Eggman in Nonaggression.