Honestly, I couldn't get very far into the game because I kept getting distracted and dying to a frog. Also, the bones were kind of... ambiguous? Like, why am I collecting them. Great visuals and SFX though. Good job!
The idea was to have a star like system, but with bones, for completing each level, and unlocking other levels based on that. But I had only 3 days to make this game, so... :)