I was originally going to have the boulder be a sprite of it's own and they'd move that, but for whatever reason on that ONE map, the boulder sprite just wouldn't load. So I had to bump it into a custom tile for that tile set. I'm very lucky too, there was exactly 16 tiles left, perfect amount of what was needed.
I'm holding off slightly on the project for now for college reasons, plus there's a chance with the new thing coming up, I'll have to redo the entire project from start again for organization reasons, plus for certain reasons that will be seen if it can get finished ;]