Simple change I'd like to see: disable achievement and level up banners separately, as achievements remain notable throughout the game while you don't need to see level ups all the time later on.
It can be beaten. Supernova is laggy though, and I don't like all cursors with oversized trails and huge particles because it gets difficult to get through. But I made it in 21 minutes. 5/5
There are sometimes raged enemies, which are dangerous