I played as Zelvy. I think some of the enemies spawn at awkward or unexpected rates. Some aesthetic choices aren't really for me, but that's just personal taste I guess. I don't think I've played this type of game before so I don't have much to say on the general aspects. I think it's a fun arena type of game, don't know what exactly to call it but I'm sure you get what I mean. I like how seamless and simple level ups are. I think some sort of tower defense mode could be fun.