I think it started out real calm. I was exploring and getting used to the controls which became fun and was in level 1 for a cool minute and then suddenly was slingshotted into the next levels all the way up to 21, each level gaining new abilities but super fast. I would have like to earn things at a reasonable pace because I had no idea what was happening. That being said the amount of upgrades stacking and enemies flying through was impressive. Overall cool game and concept :)