This was really fun! The art is charming and the core loop is good enough that doesn't feel tedious playing many times. Loved all the character(TM) inclusions here, not just Resident Evil inspired.
I didn't test enough with keyboard but with gamepad it feels good and more dynamic to play, i prefer to play it that way. I'd cool if you add aim assist because i suck at aiming lol, but it wasn't really a problem. I managed to defeat the boss and unlock the secret character, who was a nice surprise :D.
I think overall the character variety is fine and fun to play. I'd love to see more synchronization in Ro's animations since she has long range and the bullet comes from the character center.
I didn't figure out in my first run you can fast travel in the minimap, i think that's a cool feature :).