Unlike my first review, I'll try to keep this short and sweet since this game is short and sweet (my first review was on Frantic 2, check that out if you wish).
Music is average to good, although it gets a little repetitive when you've heard it a few times. Gameplay is simplistic and easy to understand. Enemies are a tad bit tougher than what I would recommend and their should be an upgrade system to the powers that you are given. Speaking of powers, all of them, except for the standard fireball, should be bought later on in the game and their should be a shop and upgrade screen in between levels.
All of this totaled up would be about 2.5-3 stars. However, since you guys made this game in 5 days, I'll cut you some slack and give you 4 stars.