Egg Chaser (Sonic Advance 3)

One of the harder bosses in Sonic Advance 3, this battle sees Dr. Eggman chase the player up a vertical shaft, populated by unsteady platforms that will fall just after touching them. As the battle moves up, this creates a bottomless pit, which is the biggest hazard of this fight. The only way to attack Eggman is to get the platforms to land on ontop of him, which is hard as he constantly moves back and forth. He also becomes invulnerable when he flips his machine over, firing a mace at the player. The best strategy is to worry about moving up without getting hit, as hitting Eggman will come easily. Gemerl is situated just under the mace as Eggman flips over.