Played through it. It's not much, but that's fine. For the simplicity, it's pretty well thought through.
My biggest complaint is hit boxes. Particularly in the boss fight. It is VERY difficult to get through that fight because of how easy it is to get hit. I do like the concept where artifacts increase your power. The other power source (and the only way to win the race) is just a little too obscure. Some animations can be messed with if you try to do too many things at once. I have managed to softlock myself by getting out of the dying animation.
Some more specific thoughts, spoilers ahead.
- The small beholders slingshotting themselves is a little annoying. It makes you think they're attacking you when they're harmless. I think they should just follow with a drooling animation to better convey that they won't hurt you.
- I think the Alchemist potions should have been useful as long-term transformations for puzzle solving, or even a defensive measure. Like Floating Boobs prevents the Mage spells from hurting you.
- I would have liked a small "sandbox" mode that lets you replay animations. Particularly with the Slime Queen.
- Goblins have a global range on their attacks. Unlike the Mages, who have to be within a set distance, this can be very annoying.