Nice job! I can honestly say I enjoyed this one, finished it and got the little secret/easter egg bit at the end. I liked the concept of having to plan out what potions are needed to get through each puzzle, though admittedly more complexity with them would be nice, towards the end it felt like it was a lot of just using two potions at a time. My main critique is the player, the movement is a bit floaty and slow with my biggest issue being that since you don't accelerate while in the air, and accelerating on the ground is slow, short jumps are basically pointless. Overall though great job!