Primary

 

Yo-yo

The standard weapon that Mikey wields.

Slingshot

Maximum 40 bullets. The slingshot is good for long-range attacks.

Boomerang

Another long-range attack weapon, the boomerang comes in handy when Mikey crosses the bridge.

Underwater Gun (Harpoon)

Replaces Mikey's yo-yo during underwater stages.

Secondary

 

Bomb

Can be used to uncover hidden doors or blow up enemies.

Molotov Cocktail

Throwing one will take out nearby enemies.