Debug mode
Type debugon during game play to enable debug mode. Dinosaurs will ignore your character until you shoot, weapons will have unlimited ammunition, and lava is not harmful. Additionally, enter one of the following codes to activate the corresponding cheat function.

Code - Effect
[Ctrl] Run very fast
[Shift] + S Toggle slow motion
[Shift] + A + Z + S Slow motion
[Shift] + T Toggle frame rate and polygons per frame display
[Ctrl] + N Longer jumps
[Ctrl] + T Display time
[Tab] Full map
[Space] Hold before entering water to swim