Interesting idea! I like the use of physics puzzles combined with regular running around to collect things. The tutorial was painfully long and slow and I wasn't able to absorb the information well. Some guidance in the description would have been nicer, or at least an interactive tutorial.
The building was a bit confusing and it wasn't clear at first what the objective even was, and later on how to actually use the tree sap. I felt like it worked some times but not others and I'm not sure what the difference was.
Overall quite good and well polished!