Hey, I tried your game out. I would have like to compare the old and new version to see how it improved. Anyway for the current version, if you still want to improve it, I think you could make some extra levels, as now it end when it basically starts (my game is as short as yours btw xD). Also I would add some visual feedback on your current boosts and maybe when the next jump will be.
Feel free to check my entry and tell me what you think of it. You can also compare it with the previous version as I left it in the download options.