This game is AWESOME! If you are a tetris fiend, download this game. I really thought this game was gonna be a run of the mill block-drop game, but NO. There are a few mechanics in this game that kept me coming back. For one, being able to chain blocks of the same color is cool, but using rings to clear huge spaces (thus making chains easier) is awesome. I also love the rush bonus. But my favorite mechanic is the BADGE system. It really is not extrensically much of a reward, but it's intrensically SO satisfying to shoot for the badges every run. Just seeing that little icon when I pull off a huge combo or a rush pushes me to use all tools available to me. Thank you Mr. Dong for releasing this wonderful gift for free. It's been my obsession for about a month now.