Resident Evil, the original one. That will freak you out if you dont know what is coming next.
When those fucking dogs jump through the windows, the first time that shit happens and you dont expect it, it will make you fucking jump outta your seat.
One of my favorites would be Final Fantasy VII. Me and a homie took some e pills and played that game for 2 days straight, it was a really good trip.
CoD4 is hella fun high.
But my all time favorite to play while high on bud would probably be battlefield 2.
It was so crazy to fly the jets while high. Fuck, doing anything in that game is fun as hell, sober or high.