My bubble shooter

Very very simple bubble shooter game! *Contains classic and spin mode to play. *Several magic items make the game easy and fun. *NO in-app-billing, get gold for free. How to play: Tap the screen and lanch your bubble! Also use the walls on both sides to rebound. Connect 3 or more bubbles in same color to clear them. Feature: *Classic Mode -- The fallen speed of bubbles are more and more fast. Get enough score before them reach the bottom. *Spin Mode -- Bubbles can rotate around the center, It will be punish (insert some bubbles randomly) if bubbles were not cleared a few times. Clear the bubbles except center;