Battlefield 3 blows my mind when im baked, and Saints Row The Third is like a audiovisualgasum, what about you guys?
The Two best are: Oddworld Abe's Oddysee, and Intelligent Qube. both on the OG Playstation. Inteligent Qube will have you question your humanity.
Dead Space 2 you will get your moneys worth and more, plus if your are like me, you'll need to buy new underpants it takes a brave soul though...
Not to be a jerk, but this thread has existed for a while and generally floats around the first page or two. http://forum.grasscity.com/gamers-heartbeat/725866-best-game-play-while-stoned.html
The best game to not play stoned is MW3, or anytime for that matter. Within 10 seconds i was spawn killed 3 times instantly. Do you know how frustrating that shit is whem your stoned?!