You guys remember Worms, right? Well, lucky for us, Team 17, the series's developer, has re-released most of the Worms games on Android.
Worms 4 is the most recent entry in the series, and it comes complete with synchronous online multiplayer, so that you can blow up your pals online. For those of you who aren't familiar with the series, it's a tongue-in-cheek turn-based strategy/warfare type game, where you are given control of a squad of a few motley worms with the goal of wiping out the opposing team. The real draw here is for the madcap fun of each match, fun that is compounded by ridiculous pun-based (and referential) weapons like Hailey's Comet, a weapon that launches a small child at your enemies. It's hilarious, and above all, it's just plain fun.