End Game Password
To view the end game, enter the password "7R2KUL6RSZXSK6NHGSDCB720663RI2HO785P".
Infinite Keys
If you're low on keys, save the game before you use one. Now open a door and restore the game. You'll keep the key, and the door stays open!
Matter Copier
For an unlimited supply of anything, save and restore immediately after picking up an object.