Rainbow Cotton is a fun arcade-style shooter, but it has a couple of flaws.  While the game plays pretty well and I did enjoy my time with it, the lack of any information on even the basics of the game's mechanics as well as it sometimes being hard to see what Cotton's shooting at can make the game a bit more difficult than it should be, even on the easiest of difficulty settings.  It's still an enjoyable game, but a few additions could have made it even better.