DUKE NUKEM

codes, but no effects

DNKROZ
DNCLIP
DNSTUFF
DNSHOWMAP
DNSCOTTY
DNCASHMAN
DNHYPER
DNCOORDS
DNITEMS
DNDEBUG
DNWEAPONS
DNBETA
DNUNLOCK
DNALLAN
DNOMNSTERS
DNTODD