Thanks for playing!
Yeah unfortunately we were quite limited on time and we agreed to have a 'complete' game which meant it was short, but hopefully you can see the idea of the game loop, we wanted more characters / I wanted to do more cleaning mechanics and tools.
Limitation wasn't implemented well and needed sound effects and or stronger hints. When you 'go to sleep' (missing from the story) i.e you hear noises, the ghost is meant to do something which is what changes, in this case the grass and foliage on the grave disappears.