THSSLKSCL

god mode

CMGTSMMGGTS

all weapons

BLLTSRRFRND

unlimited weapons

FRTHSTHTTRLSCK

infinite lives

RBNSMITH

big heads, invincibility, all weapons, unlimited ammo, and credits

SNFFRR

disco mode

DLKTDR

wireframe mode

THBST

gallery

FDTHMGS

credits