I forget the level names because it's been a while since I've made an attempt, but a couple of the flying carpet arabian-esque levels, and I think a couple if the Egyptian levels.
No way man, a friend earned the trophy for beating Green Hill Zone on Sonic 2 on my PS3 when they stayed the night one time, and I was like "you have to play on the guest account, I have to earn those trophies myself!" even though it was a super miniscule trophy. Trophies are important to me to chronicle my accomplishments, having someone else do it defeats the purpose. The only time it's different is if I'm playing multiplayer with someone or if a friend and I decide to controller pass a whole game together, but in that instance he was just playing random stuff while I was asleep and I just- nope.
