Sonic the Hedgehog 2/Mystic Cave Zone

Act 1
Jump to dodge the long spiky bricks.

The only badnik you should be worried about is a bug enemy who turns yellow. While this enemy is yellow, it cannot be hit.

Act 2
Act 2 plays similarly to Act 1 except for the boss.

Boss
Dodge spike-like rubble and hit him 8 times to win.