Cheat: Power-ups

From the game's password menu, which can be reached by selecting options from the main menu, and then choosing passwords, enter the following codes for a variety of ways to help yourself out.:

Extra Defense Power: LDRMRLM

Extra Offense: SDLSRLL

Extra Tough: RDSRMRL

Pizza: MRLMRMR

Abyss: SDSDRLD

Fatal Blow: LRSRDRD

No Shrunken: RLMRDSL

Nightmare: SLSDRDL

Poison: DRSLLSR

Recover Health: DRMSRLR

Squeaky: MLDSRDM