Hidden and dangerous cheats. enter IWILLCHEAT as a name or at any menu screen (with a Dreamcast Keyboard) during the start of the game to enable cheat mode. The following codes using the Dreamcast Keyboard may now be enabled.

resurrect - After dying return as zombie
allitems - Get ammo and all weapons
goodhealth - Full health
nohits - Invincible to hits
killthemall - Kill all opponents
funnyhead - Big head mode
gamedone - End current mission
gamefail - fail current mission
openalldoor - Open all doors
showtheend - Show end sequence
resurrect - Bring back dead companion
laracroft - Different costumes Lara Croft)
enemyf - show enemy from front
enemyb - show enemy from back
playercoords - Show coordinates in top left corner
debugdrawwire - Wire frame mode
quickload - Load saved game of current mission
debugdrawvolumes - Unknown
fastloadgame - Quick Load
cantdie - You wont die
allloot - Weapons and Ammo