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Hellraider Cheat Codes: ------------ For invulnerability in this game, use the DOS utility DEBUG. First backup your game to be edited, then type the following from the DOS prompt: ren raider.exe cheater.cht debug cheater.cht e 1460 f8 c3 e 920 90 90 90 e 901 90 90 90 Then type: w q Then rename CHEATER.CHT back to its previous name.