To change weapon, press .
Alternatively, you can change weapon by first pausing the game using . Use left and right on to highlight a weapon, then press to resume your game.

Main Weapons

These weapons have unlimited uses.

Axe	Received from Tink the caveman, these axes travel further than rocks do.
Dagger	Received from Cleopatra, this bronze dagger is like the axe, but with a longer range.
Katana	Received from Leonardo da Vinci, the katana is an improvement on the dagger.
Psychic Shock Wave	Holy cow! Mike can shoot psychic fireballs! This weapon will be upgraded as your adventure proceeds. When upgraded, the power of this weapon is dependent on the amount of hearts you have remaining.

Temporary Weapons

These weapons have limited uses, and will disappear when you leave a dungeon.

Bola	A useful long-range weapon.
Rock	This is a simple throwing weapon with a short range.
Slingshot	Use this to fling stones at your foes!
Spiked Disc	A powerful throwing weapon.
3-Way Shot	A spiked disc that fires in three directions in front of you.

Items

To use some of these items, you will first need to pause the game using . You must then press up or down on to bring up your inventory. Use left and right on to highlight an item, then press or to use the item. Press to resume your game once you are finished.

Flute	Can be used to summon snakes.
Try Your Luck Sign	Give this a whirl and see how many lives you win!
Dynamite	Blow up certain rocks blocking your way.
Heart	Collect this to restore one heart.
Star	Collect five of these to restore one heart.
Big Star	Makes Mike temporarily invincible, unless he falls into a pit, water or spikes.
Big Heart	Increases your maximum heart level by one heart and completely refills your hearts.
Medicine	Restores five hearts.
Vitamin X	Refills all of the player’s hearts.