The long-running Worms franchise made an ungraceful exit from the Play Store when franchise owner Team 17 Digital deemed Electronic Arts' support unworthy of the brand. Now they're back in Worms 2: Armageddon (a sequel to the XBLA/PSN Worms, and not to be confused with the 1999 Worms Armageddon game) from Team 17 itself. The game is now available on the Play Store... in Canada. And only in Canada. At the moment it's a soft launch for the northern territory, so there's no word on when it will get a wider release.
If you've never played Worms, it's a lot like the old Scorched Earth and other 2D tank games.