I'd like to preface this by saying that I've never listened to any of this group's music before. but even so, this game is awesome! the amount of effort taken to make sure that everything is on beat, from the enemies to the platforms to each explosion and even the spikes.
the music itself was also really good, but I'm not really big into music so take that with a grain of salt. my only real complaint is that you have to start from the very beginning, going through all the stages to get back to where you were.
Short version: this game is great.