Cheat Codes (For N64):

• All Levels - FORGEOFF (Note: Enter FREEPLAY as a code in the PAL version of the game.)
• Artwork - ANCIENT
• Audio Showroom - MUCKE
• Credits - ABSPANN
• Development Team Screenshot - CHEESE!!
• Expert Mode - REALHARD

Game Shark Codes (For N64):

(For 3.2 or higher)

• Enable Code (Must Be On)
  F1000302 0004
  F100093A 0120
  800C890B 0000
  EE000000 0000
• Infinite Health Canyonlands Level
  8116FFE8 4C35
  811E235C 4C35
• Infinite Health Babylon Level
  81166FE4 4C35
  811FDE9C 4C35
• Infinite Health Tian Shian River Level
  81193E98 4C35
  8124011C 4C35
• Infinite Health Shambla Sanctuary Level
  81166F08 4C35
  8123EBCC 4C35
• Infinite Health Palawan Lagoon Level
  81172508 4C35
  8120293C 4C35
• Infinite Health Palawan Volcano Level
  81187540 4C35
  812441FC 4C35
• Infinite Health Palawan Temple Level
  8117FC60 4C35
  8123324C 4C35
• Infinite Health Jeep Level
  81168548 4C35
  811EDE8C 4C35
  81169130 4C35
  811EDE94 4C35
• Infinite Health Teolihucan Level
  8117C5F0 4C35
  811F973C 4C35
• Infinite Health Nub's Tomb Level
  81192CF8 4C35
  81235D3C 4C35

Level Access Codes (For Game Boy Color):

• Babylon - LGSXRTNR
• Russian Border - MDTSVTTP
• Tian Shan River - MGVWVZNX
• Shambala Sanctuary - NGVSV2S2
• Palawan Lagoon - SDWXWTJM
• Palawan - Volcano RDSPRZZP
• Teotihuacan - RGWTQTNX
• lmec Valley - RCQQR2TX
• V I Pudovkin - NLPXSVJP
• Meroe - NJNRXVZM
• Nub's Tomb - PLVWXVNX
• Infernal Machine - TJWRTZJM
• Aetherium - QHTVSTTP
• Return to Peru - SLPSRWPT

• Earn 1,500 I.Q. points to unlock the "Return To Peru" hidden level.
• UFO sighting - Use the whip to loosen the stone ball from the wall in the bonus level (Return to Peru). Go down and walk through the hall of snakes again. Climb over the large wall again, jump to the edge where the stone ball previously located. Push the switches to the right in the following order: 4, 5, 3, 1, 2. If done correctly, a door will open and a scene from Close Encounters Of The Third Kind will appear. Look out of the windows to see a UFO.

Glitches (For PC and N64):

• Unable to use weapons - Go to the Palawaan Island level, jump in the water, swim down, then swim very fast up to the shore so that Indy gets out of the water without putting his hat on. Indy will not be able to use his guns, whip, or any other weapon other than the machete. Jump back in the water and come out properly, and his hat will be put back on.