This was fun! The combat was fun and I like anything that lets you upgrade stuff. I like the art style a lot, it's cool to see the pixel art in a 3d world kinda reminds me of paper mario a little. I think I played thru everything, I killed the 2 giant slimes in the level 4 area. Great job on this!
Oh also there is an exploit you can do to get enemies to spawn their rewards more than once. It seems the death animation resets when you get close to the enemy as it's dying, so if you time it right you can walk back to the enemy right after it spawns items and the animation will restart and they'll spawn them again when you walk away. It's a little hard to pull off, but I was getting double and triple rewards from most enemies once I realized you could do it.