Nice game. It took a few tries to get used to the controls, but I managed it and the gameplay felt nice. If you don't mind I have a few comments to make. 1. The wall of explosions (the "chaos") that is chasing you is a bit too slow and the player shouldn't be able to get too far away from it (give the "chaos" a speed boost when the player is really far away). I was able to get so far up, that the explosions weren't a threat anymore. 2. You shouldn't be able to shoot platforms that are not visible on the screen (or very far away). What I managed to do is to get really high up and just shoot downwards to get score. 3. The explosions animation doesn't get deleted after it finishes, so it stays there on the last frame.
Hope I wasn't too harsh :). Other than that I liked the characters sprite and controls, I like the idea that you get score by destroying platforms, which creates a dilemma, where you need to shoot them and use them to get up. Anyways, great job and keep creating :).