Lots of improvements compared to previous demo day's version. Managed to beat it from the second try, likes how it turned into a bullet hell, but boss's confusion potions were bullshit, there's no way to evade them if you want to avoid getting hit by her other attacks.
Also, on second try the level generation didn't make a lot of sense. On my first try, the keys were hidden behind enemy encounters, and doors were blocking path to upgrades, whereas on the second try keys just spawned next to me, and doors sometimes led to nowhere.
I found the lifesteal and barrier to be the most useful upgrades, you're basically immortal and leave the encounter with more health than you had before. Speed upgrade was also very noticeable. What other stats do, wasn't clear.
Anyway, I liked it, keep up the good work.