Actually, you only get the "cheater" rating at the end if you use a cheat code to afect your health or increase your weapons. Any other codes, like happy, perf, slowmo, but i feel so good etcetera, do NOT affect your rating. Otherwise I wouldn't even consider using them.
I only used 'em in the demo because I was bored out of my mind.
[ July 25, 2001: Message edited by: Redwing ]