Here's a mobile-friendly browser game. We call it the zombie buster. And rightly so, the hero character of this game has a grenade launcher which launches ball-shaped grenades on the zombies that are placed in a manner that it will test your knwoledge of geometry. You need to judge the angles accurately to ensure the grenades fall and settle very close to the zombies. Only then it will kill the zombies and take you to the next level. Try this game, share with your friends to ensure even they can enjoye.