Descent Maximum [PSX]

Invulnerability
While playing a game, press Triangle, X, Triangle, Circle, X, Triangle, Square, X, Triangle, X, Circle, Triangle.

Final level
Enter "2R*8H-9YMBL-3JGCS-NF#WR-WHKG97" as a password.

Cheat Codes
Enter the following codes in the keys section:

Result Keys Nickname
Weapons, energy, shields STOS TSX SOTSX ACE
Weapons, energy, shields, keys, level select TSOXT STX TSXO $40
All keys STXTO TX TXTSX MIK
All accessories STOXX TSXO SOX TOY
Toggle invincibility TXTOX TSX TXOT DCD
Toggle cloak XTO SOTSX TXTO RED
Recharge shields TXOS SXO TSXOS BUG
Turbo speed TSOX SXO STOXX SVT
Extra life TXSO TX SXO XTO +1 UP
Fast robots that fire slowly TXS STO SXO STO JAVA
Weird Colors TXO TSOX TXTOX LSD
Toggle "Go Wingnut" mode TSOTX STOS TXO 4AD
Acid mode STOS TSX TX TOX ACID
Hello Minnie mode XOXOXOXOXOXO XO

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Game Shark Codes

Infinite Lasers 800E92FE 0064
Infinite Energy 800E9302 0064
Infinite Concussion Missiles 800E9328 0063
Infinite Homing Missiles 800E932A 0063
Infinite Proximity Bombs 800E932C 0063
Infinite Short Missiles 800E932E 0063
Infinite Mega Missiles 800E9330 0063
Infinite Flash Missiles 800E9332 0063
Infinite Guided Missiles 800E9334 0063
Infinite Smart-Bombs 800E9336 0063
Infinite Mercury Missiles 800E9338 0063
Infinite Earth Shakers 800E933A 0063
Infinite Lives 800E9304 0109
Have All Primary Weapons 800E930C FFFF
Have All Secondary Weapons 800E9310 FFFF
Infinite Vulcan & Gauss Ammo 800E9316 0063
Have Level 5 Laser 800E9306 0404
Have Earth Shakers 800E933A 0063
800F8668 0009