I only have one little problem with the game, It's a little difficult.  Many of these types of games are naturally difficult but this one seems a little bit worse. It could just be me, I'm not particularly good at these types of games, but I seem to die a decent amount.  I think the main problem for this is the 5 phases that you go through on each planet.  I always do very well the first 3 phases, I usually don't die once, but then come phases 4 and 5. I always get close to, or at the boss, in the final phase and then I die, and have to start all over again.  I don't mind replaying levels, but it takes 10 to 15 minutes depending on the level to get to phase 5.  I've spent close to an hour before on the same level, even though the level design is awesome and re-playability is there, I get bored playing the same level five times and always dying in the 5th phase.

    Despite my few complaints I'm really loving this game, the level design, sound and re-playability keep me enthralled with this game. I'm glad I purchased it and I encourage everyone else to check it out, and if you're thinking about getting it but just aren't sure, I say go ahead and get it, you won't be disappointed.