as a youth who has participated in both i can say that though both produce some similar sensations they are definitely not one and the same the fainting game produced in me and all of my friends who participated about seconds of unconsciousness with every friend claiming that this was the effect of the game it was basically the so called fun of the game passing out for seconds and going into a semi lucid dream state that felt like an extended reawakening of reality upon coming back into consciousness as if the moments preceding the faint were part of the dream experience inhaling nitrous oxide did also put you in a sort of dream state but the high was more of a sensory motor change than a loss of consciousness