The following are known GameShark Codes for Gex 3: Deep Cover Gecko on Sony Playstation (PS1).

These codes were also known as Action Replay Codes outside the U.S. and later in the U.S. and are compatible with both devices.

• Moon Jump
  D00A3E24 0080
  800A290C 006F
• Invincible
  800B37B8 002E
• Infinite Health
  800AA5D0 0005
• Infinite Lives
  800AA5CC 0064
• 99 Coins
  800AA5DC 0063
• 99 Paws
  800AA5D8 0063
• 99 Flies
  800AA5D4 0063
• 99 Remotes
  800AA5E0 0063
• Have Debug Menu Open (Press Select While Playing)
  300A3E9E 0008
• Blabbermouth Gex (Press Select To Hear His Mouth)
  800AA6B4 2000
• Have All Special Remotes
  800AA5EC FFFF
  800AA5EE FFFF
• Infinite Air
  800B38EA 032A

Have All Remote Codes

• Totally Scrooged
  300AA5AC 00FF
• Clueless In Seattle
  300AA5AD 00FF
• Holy Moses!
  300AA5AE 00FF
• War Is Heck
  300AA5AF 00FF
• The Organ Trail
  300AA5B0 00FF
• Cut Cheese Island
  300AA5B1 00FF
• Unsolved Mythstories
  300AA5B2 00FF
• Red Riding In The Hood
  300AA5B3 00FF
• When Sushi Goes Bad
  300AA5B4 00FF
• My Three Goons
  300AA5B5 00FF
• SuperZeroes
  300AA5B6 00FF
• Mission Control
  300AA5C3 0002
• Lake Flaccid
  300AA5C4 0002
• Slappy Vally
  300AA5C5 0002
• Funky Town
  300AA5C6 0002

Have All Coin Codes

• Totally Scrooged
  800AA628 000E
• Clueless In Seattle
  800AA62A 000E
• Holy Moses!
  800AA62C 000E
• War Is Heck
  800AA62E 000E
• The Organ Trail
  800AA630 000E
• Cut Cheese Island
  800AA632 000E
• Unsolved Mythstories
  800AA634 000E
• Red Riding In The Hood
  800AA636 000E
• When Sushi Goes Bad
  800AA638 000E
• My Three Goons
  800AA63A 000E
• SuperZeroes
  800AA63C 000E
• Mission Control
  800AA656 000E
• Lake Flaccid
  800AA658 000E
• Slappy Vally
  800AA65A 000E
• Funky Town
  800AA65C 000E
• Clueless In Seattle
  300AA5D0 0004