Well, you can try play paintball with your friend. Paintball is a quite interesting activity to be played in groups, because this game or some people say sport is like a military combat with the bullet of the weapons is made of paint contained pellet. The rule is so easy in this game, all you need to do is to eliminate the entire opponent team member. In playing this game, you will need equipments which are will protect you from the bullet like paintball mask and also the weapon plus its bullets.

There are many stores selling paintball masks and other paintball equipments, one of them is PntBall.com. This is an online store which you can also buy a package of paintball equipment for only $99.99. Or if you want to buy only certain equipment to play paintball you can also choose the product based on the categories available in the website.