I enjoyed the game, though I do have a couple comments. First, the whole thing seemed a bit crowded. The progress bar seemed to eat up a lot of the screen. There were times when the clouds spawned on the very edge of the screen and moving the mouse towards them caused the game to stop responding to mouse movement. I think it was just the frame losing focus but it resulted in some unfortunate deaths. The upgrades seemed to scale fairly well and I never felt like I was grinding away without making progress. The fact that you could probably cloud bounce to the top without any upgrades whatsoever helped this as well. All in all a fun game, keep up the great work.