Sonic the Hedgehog 2/Hill Top Zone

Hill Top Zone is a dichotomy, featuring both lava-pits and icy elements.

Act 1
Some enemies here are hard to avoid, such as an enemy type that shoots out 4 fireballs.

Act 2
Act 2 plays similar to Act 1, except for the addition of a Boss.

Boss
The boss fight takes place in a lava pit. Here Robotnik shoots the player character with fireballs. Consistant attacks are a good strategy.