Full Guns and Ammo  -  Pause the game and press X, Triangle, L1, Up, Down, R2, Left, Left. 

Full Map  -  Pause the game and press Triangle, Triangle, L2, R2, L2, R2, R1, Square. 

Invincibility  -  Pause the game and press Down, L2, Square, R1, Right, L1, Left, Circle. 

Level Warp  -  Pause the game and press Right, Left, R2, R1, Triangle, L1, Circle, X. 

Map with Objects  -  Pause the game and press Triangle, Triangle, L2, R2, L2, R2, R1, Circle. 

Passwords 
THE MASTER LEVELS 

LEVEL 2 VIRGIL RBF9D395SQ
LEVEL 3 CANYON 1L3C!F7XO2
LEVEL 4 COMBINE HLLZTPOKKK
LEVEL 5 CATWALK 6J1NWHFR64
LEVEL 6 FISTULA 8WWRSSHM79
LEVEL 7 GEYRON D9SOWVFJFC
LEVEL 8 MINOS HS9YW3HMFC
LEVEL 9 NESSUS OSSHCWFVYW
LEVEL 10 PARADOX HT!OVLXLDB
LEVEL 11 SUBSPACE J77VYTMDCF
LEVEL 12 SUBTERRA 6XDHRW25!8
LEVEL 13 VESPERAS C33W2YOGHK

TNT EVILUTION

LEVEL 14 SYSTEM CONTROL FP62ZMSWJG
LEVEL 15 HUMAN BARBECUE D5510QKRKH
LEVEL 16 WORMHOLE ZVBKT!O69!
LEVEL 17 CRATER 1CCTV9GQ!9
LEVEL 18 NUKAGE PROCESSING TM4OLJ2ZKJ
LEVEL 19 DEEPEST REACHES HYY4GQ9GSQ
LEVEL 20 PROCESSING AREA !5NR4W7C20
LEVEL 21 LUNAR MINING PROJECT 1FFGVZ1777
LEVEL 22 QUARRY SN5YORKIGH
LEVEL 23 BALLISTYX ZBBST6R89!
LEVEL 24 HECK GK25JLV3LL

THE PLUTONIA EXPERIMENT

LEVEL 25 CONGO G224SGYSNL
LEVEL 26 AZTEC TR8WXJVNBD
LEVEL 27 GHOST TOWN XBBRT67N8!
LEVEL 28 BARON'S LAIR NGZ9HTCMMP
LEVEL 29 THE DEATH DOMAIN OGGMO6W546
LEVEL 30 ONSLAUGHT 99SD40FYVW

X-Ray Specs  -  Pause the game and press L1, R2, L2, R1, Right, Triangle, X, Right.