very cool and fun concept and use of alchemy,nice menu and audio, some feedback:
1. something is too saturated for me in this game too many colors but maybe thats just me
2. the arena in 4p is too far from my sigil or whatever it called so i need to constantly go a lot to see whats happening
3. I would maybe allow the camera to be moved without moving the player
4. I don't have an indication what is the result of the ingredients im combining, or i missed it
in summary this has high potential just needs to be polished! well done :)