You hit the theme pretty well with this one. Super fun to get stronger and stronger but at the same time know - this is my enemie soon. That also made it a little punishing, you want to become stronger but at the same time you don't want to become too strong so you can't defeat your old self.
it would have helped to know what each potion does. I just collected them randomly but i guess each color does something specific. also maybe it would be cool to see my current "stats" like attack speed and number of projectiles i fire.
Overall i had a lot of fun with this one!