Sol, I playing the game all the way through before reviewing it.
I like it. I love the musical effects of the blocks, especially when you turn a whole bunch at once, and the basic gameplay is rather addictive. You could add a little bit of enhancement to the graphics, but I wouldn't say it's necessary in this type of game. The game is pretty easy. There are a few nasty levels toward the end, but nothing to cause a rage. Wall jumping is difficult, but nowhere near as buggy and frustrating as it is in some of the other games. The biggest challenge is that the hit detection on the red squares is pretty brutal. Not that there's anything wrong with it, it's just unforgiving. This is probably good for the challenge, though. The game could stand to be a little longer, but it works well as a quick, relaxing play.
I think the only reason for the low reviews is that pesky Space glitch. I got it too, but it didn't really effect my ability to play. I'd give you that extra half-star if you can fix it. It may be as simple as changing the "jump" key to Shift or CTRL.