Press ~, then enter one of the following codes at the console window to activate the corresponding cheat function.
Effect
Code
Edit Maps option at main menu
developer 1
Finding items
Open all crates and chests. Collect the keys to find new characters and treasure.
Secret areas
Look for things in common between secret entrances in each chapter. This will help you find the other secret entrances in the same chapter. When you find a wall that you can see through it usually means a secret room or path is there.
Staying alive
Always have something to heal you. Never go in a corner or remain in the same location for too long.
Traps
Use the traps to kill enemies. Although you will also get hurt, enemies will get more damage than you do.