They were really the stinkers for me. I literally walked across the room for a summoner and it healed itself and a bomb summoned two more bombs and teleported itself from danger. I finished the puzzle room and after that, I said myself if I see one more I will close the game and I did.
I don't want to exaggerate but those types of enemies(the summoner and sparky) and the sluggishness of the game really broke the charm for me.
Otherwise, I like the telelocation, thermal punch, mirror orb, fireball and dash cards were pretty fun. They made the game more diverse and more fluid.