It has a very Bit. Trip. like feel to it, where there are three levels, and each one is harder than the last, yet each one also has it's own rise in difficulty. It's fun, the music's good...it's just a lack of checkpoints that kinda kills it for me: once you get far in, and you die, there goes your progress. It kinda feels like trial and error, but once you get it, you probably won't be making the same mistake twice, with the exception of just plain idiocy of lack of quick response, but I digress.
Altogether, a 9/10, for having solid, simple and fun gamplay with a easy pickup and play rate...but some frustration on the later difficulties, and a lack of checkpoints. Good work, and I hope to see more of this series.