Egg Frog

Egg Frog
Game: Sonic Advance 2
Level: Egg Utopia

The Egg Frog is the boss of Egg Utopia Zone in Sonic Advance 2.

This battle uses gravity switching for a tough boss. This boss is basically Eggman's Eggmobile with long legs. He uses these legs to leap between the ceiling and the floor. When he does, he leaves behind a flame trail, forcing the character to leap to the opposite path or face certain death. Jumping high enough will automatically flip the gravity in your favor, so use this to hit the Eggmobile while flipping gravity.

Upon beating this boss, the boss rush level XX is unlocked.