I'm not very good at these types of games but I found the hitboxes to be weird, especially for the slime boss I felt like no matter where or how I swung I wouldn't hit him. The killer whale fight was probably the most fun for me, just because every attack is telegraphed well and there are obvious openings to go on the offensive. I felt like a lot of attacks were one shots when they probably shouldn't be, especially the mushrooms projectiles. I also feel the area size was really limiting.