Super slick! The animations and artwork are all fantastic, music is jamming, and while there doesn't seem to be much variety in terms of normal enemies I think the super wide variety of special abilities and the bosses make up for that.
My only note is that it's a bit confusing the abilities are divorced from the icons. Even though the characters are really cool, mid game I have so many effects to keep up with and it's hard to remember which icon represents what since it's all arbitrary. Universal icons like bombs for bombs, shields for shields, and crosses for healing would help that, although it's kind of sad to lose the flavor. Maybe bringing up the character every time a SFX is used, similar to how the bosses are displayed?