I beat the mind test. It was nice. The riddles difficulty is well balanced. I think the one about the father is wrong, though. The ansmer should be "me" unless I am wrong.
I wasn't able to pass through the first room of the strengh test even after many tries. The camera angle make it very hard to see what's happening and the jump controls felt a bit weird (a "coyote time" would helps).
The graphics are nice. Maybe adding a pixelated texture to the walls/floor would have made them fit better with the character.