Playing this game is easy. Just place towers strategically and take care of the ants before they're able to reach the cake, and if they do, stop them before they make it back to their anthill. Cannons can be placed quite freely, but you're not able to maze too effectively. (Ants are small, after all!) Each cannon can be upgraded in a variety of ways, down a variety of paths. The difficulty of Ant Buster comes from being able to counter the ant's erratic movement. It's hard to predict how they'll behave, or the paths they'll take. This makes them difficult to hit for your cannons. But practice makes perfect, so if at first, you don't succeed, try try again.