Have you played the pocket tanks on your pc. Yes that crazy shooting game. And this is game is just like that but with :

• With nicely created cartoon and touch controls
• Use the practice mod on a A.I. Dummy
• It have 30 Single Player missions with 5 new themes including Manhattan, Medieval, Sports, Construction and Cheese
• Play online with multiplayer with 2 players 
• Tons of weapons to burst enemy's face
• Customize your worm with names, hats, skins and more
• A total of 12 mode
• See who is on the top with Leaderboards
• See your progress with Achievements

That is why is on the Top Paid list in Google Playstore

What's in this version: (Updated : Sep 6, 2013)

Various bug fixes and improvements to the game.

Required Android O/S : 2.2+