Duke Nukem (1&3)

--- For version 1:
Another UNLIMITED health patch ... Are we boring you?
Guess not, otherwise you wouldn't be here, would you ?

Anyway, first use PKLITE -X DN1.EXE to uncompress
the exe so that the patch can go at it.

-- Both versions :
Press [Backspace]+[Pgdn] while playing. (Information from Cheat Machine)