Paintballs fun as hell. Go with 20 friends and you'll have one of the funniest days of your life! It gives you the sensation of a real life gunfight because it does hurt when you get hit so you try to sneak around, especially near the end of a game when only a few people are left. It gets quiet and you try to strategically sneak up on and eliminate the other team. It's way too fun.
I go paintballing all the time, hurts soo bad getting pegged on the inside of my quads... stings soooo badd