Nice game i like the idea of a ghost defending its cemetary from graverobbers. There was a lot of downtime though when there weren't any robbers to scare... Also i didnt quite get what the posses skill did. But i think with some rebalancing this could become a really nice defender survival game! good work!
Also a tip for all the pixel art unity developers: unity has a pixel perfect camera script built in in it's package manager. Just enable it there and pop it on your camera with the desired resolution and BAM! Pixel perfect pixel art