Very cool concept. The theme is satisfied and the execution is very good. You could work on the graphics a bit, but that's just a minor thing. There are two things I would change though:
- Make it possible to walk on the graves because it is really frustrating if you get stuck on them
- The Pathways look like walls in the first few minutes i thought i cannot walk on them
Otherwise a great game, it could be an amazing mobile game if done righ