It was OK, More variety needed
Its OK i suppose, but i didn't feel compelled to play for more than a few mins.
On a technical level its all good, the physics were well done and i liked the fact you've included multiple difficulties, but Ive seen and played so many of these type games, thats probably why i got bored......
I also imagine you have developed this game to be played long term (career mode/ different difficulty settings) again this is all good especially with the unlockables, but there needs to be more variety to the gameplay to go with it, power ups etc.....
Also work on the design a bit, thought things were i bit bland/repetitive. And there needs to be a mute button or more than one song to the game, which also stops playing after its finished (which for me was a good thing).
Overall i think it has potential but there just needs to be more, Obviously youre quite good at developing games and such so i think this is all within the realms of possibility for your future projects,
Regards, woodhall.