Super Mario 64/Enemies

Chain Chomp
Chain Chomp is a chomp that barks. He is attached to a chain that is attached to a pole (like a dog). If he sees you, he will instanly charge at you. Run away from him before he sees you.

Strategy
Run around his pole 5 times and coins will appear. Now pound his pole 3 times to set him loose.

Reward: Star

Koopa
A Koopa is a fast-moving bipedal turtle. There are 5 types: Large Bowser (Bowser 3), Normal Bowser (Bowsers 1-2), Koopa the Quick (Race), Normal Koopa (Enemy) and Mini-Koopa (Enemy).

Strategy
Bowsers 1-3: Throw him into a bomb three times

Reward: Bowser 1 and 2: Key to the next floor, Bowser 3: Power Star

Koopa the quick: Talk to him and run to the top of the mountain within 1.30 minutes. Reward: Star

Enemy: Jump on them, or punch them.

Koopa: Shell, Blue Coin

Mini-Koopa: Yellow coin