This game is just amazing! I highly recommend it to those that find arcade games too difficult at some point and never finish the game. This game is different. The difficulty between levels is rising so slowly that you don't even feel it, yet throughout the maaaany levels that this game provides, new elements are added. And behind the excitement of arcade game, there is also a plot, a simple one but good enough to give the whole gameplay sense. I got it as an extra to the game that I bought, and to be honest, first I went through the Glowfish and forgot about my purchased game. I loved it when I first saw it. The game is all colourful and cute, and what is even better, it is not so easy to die in the game (uless you do it on purpose) if you are only trying to play well.