This game is nice. I really can't think of any flaws. However, it would be even better if there was more variety to the powerups available, and a greater variety of flying crap that can hit you.
This was a great little diversion. Smooth gameplay and control with nice art, audio, and crisp, clean visuals. Found all five trophies, some were nicely hidden. Takes elements from both Loco Roco on the PSP and Sonic the Hedgehog. Loved it. 5 stars.