I'll cheat under the following circumstances:
1. It's not really cheating, but I'll use codes that change things in the game without affecting the gameplay. Like... paintball mode in a shooter.
2. I've finished the game already.
3. The game sucks balls. I cheated at Turok 2 back in the day because that game was [img]/xxx.gif[/img][img]/xxx.gif[/img][img]/xxx.gif[/img][img]/xxx.gif[/img] and that was the only way to make it tolerable enough to get my money's worth for the rental.