Cowboy X Zombies

Cowboy shoot zombies - ..As by name you are the cowboy and you have to kill all those bad evil zombies...you got a revolver to shoot them... collect grenade to burst all zombies together..as you are a cowboy in the game you will get the chance to ride on a horse too. So collect as much as coin and shoot more and more zombies to make your own highscore...so lets start and be a ultimate cowboy... SHOOT THEM!!