Various Cheats(Enter as Passwords)
S X N = Cheat Mode (God, Infinite Health, etc)
KNGHTSFR = All Keys
LMSPLLNG = All Maps
THRBLDNS = All Weapons
NDCRSDRT = Infinite Ammo
HLGNDSBR = Infinite Health
NFTRWLLH = Level Skip (Press Select at Map Screen)
CRSDR = Sound FX Test
Passwords - Easy
CRSDRPLS - Level 2
TKMWTHYB - Level 3
TTLLSFRT - Level 4
STCRSTRD - Level 5
NTLVMLNW - Level 6
NTTRDTNY - Level 7
RQSTMWTN - Level 8
GTSTNDBY - Level 9
YRSDTFGH - Level 10
TWTHYVRS - Level 11
THYRCLLN - Level 12
GHVTBTHR - Level 13
HLYLNDHS - Level 14
TBFRFGHT - Level 15
GDFGHTBL - View End Credits

Passwords - Medium
VWHTSRGH - Level 2
TCRSDRLR - Level 3
DFRLMWTH - Level 4
LLYRMGHT - Level 5
WRMRCHNG - Level 6
TLNDFRFR - Level 7
MHMNNCNS - Level 8
YWHLLRTR - Level 9
NFRCHRSN - Level 10
DMSSKWLL - Level 11
TKRRVNGN - Level 12
PGNFRMTF - Level 13
STWCHRST - Level 14
NSRCMNGW - Level 15
THSWRDSH - View End Credits

Passwords - Hard
LDNHGHNT - Level 2
DBYFTHND - Level 3
CSSRCNHT - Level 4
HNSWLLSN - Level 5
TSTRSTLR - Level 6
STNDRDSW - Level 7
LLRSCRSS - Level 8
LNDTBTTL - Level 9
SRCNHRDS - Level 10
WFLLWRWR - Level 11
RRKNGNWR - Level 12
DNTFGHTW - Level 13
CRRYSGNF - Level 14
CRSSWRLR - Level 15
DSFNGLND - View End Credits