Start with 1 life instead of 3--player 1 - PEUXYALA

Start with 5 lives--player 1 - IEUXYALA

Start with 7 lives--player 1 - YEUXYALA

Start with 9 lives--player 1 - PEUXYALE

Infinite lives--both players - SZNXTEVK

Protection from most enemy hits - SZKVOKVK

Protection from water - SXUVYVVK

Start with 1/2 energy (die when bar is 1/2 empty) - AEXZGLAO

Stone axe and flint do more damage to bosses - AAKUEAPE

Stone axe and flint do a lot more damage to bosses - YAKUEAPE

Stone wheel and boomerang do more damage to bosses - AASLOAZE

Stone wheel and boomerang do a lot more damage to bosses - APSLOAZA

Fire does more damage to bosses - APSLVAGA

Fire does a lot more damage to bosses - AZSLVAGA

Apple and hamburger worth nothing - SZVTKUSE

Apple and hamburger restore energy to 1/2 - AAVTULAO

Start with stone wheel instead of stone axe--player 1 - OVUXZAET

Start with flint instead of stone axe--player 1 - XVUXZAET

Start with fire instead of stone axe--player 1 - UVUXZAET

Start with boomerang instead of stone axe--player 1 - KVUXZAET