Bubble Defence 2

Bubble Defense 2 is a sequel to the incredibly popular Bubble Defense game released in 2009 for Android and BlackBerry platforms. It's a fixed-path tower defense game with difficulty ranging from "so easy, anybody can do it" to "this is insane!". Each map represents a unique challenge, so the player never gets bored. Built-in scoring system encourages players to replay already solved maps on higher difficulty settings to achieve a better score.