This game is REALLY fun, I love hades so this scratches my brain the same way, it's a lot of fun, the upgrades are good and the game feels good to play. Only nitpicks I have are the dash being aimed at the closest enemy rather than the direction the player is facing (that'd make dashing a lot better imo) and no effect for when the player takes damage, it's hard to notice unless you look at the health bar, which you're not focusing at when playing.
I'm also not a big fan of the upgrade before bosses which gives you a debuff and also a buff, but that's just me. As someone who wants to make a game that is like hades, this gives me some inspiration, very very good!