Sonic the Hedgehog 3
In Sonic 3, there are six Zones. Every Zone has got two levels, which are named "acts" in the game. At the end of every act 1, you've got to fight one of Dr. Eggman's robots, and at the end of every act 2, you've got to fight Dr. Eggman himself. There are small robots called "Badniks" in the acts. Most of them can be destroyed if you jump on them. If the badnik is destroyed, a little animal jumps out of it.