Well, this is pretty good! I have to admit that the mechanics behind this game are a littleglitchy, though. Firstly, when the blocks are detroyed, it takes them 5 seconds to actually be -removed- from the game. Their image may go in two, but the script makes them stay for much longer. Plus the music is a little annoying. Apart from that, I like where this is going.
The artwork is simple, yet it works very well, however though, the powerup symbols seem like they were just taken from another game and slapped into this one. They don't feel right for the game mood. Same with the boxes and HUD, aswell. Try and keep it simple to match the character, and I think you'll get a better product.