The WebGL version is too big to be playable... I'm using the Windows version instead.
Yeah... this game is broken. I didn't collect any body parts even though I'm digging up the graves by holding the F key.
The WebGL version should be fine in fullscreen mode, but that might just be on my machine.
Also, you have to dig for a while. Keep holding F at the grave and a body part will pop up after 3-5 seconds.