Lots of things to fix up to make this game a good game :
- First of all, the puzzles. When you find the answer by yourself before finding the inscription in the game it doesn't work. As an example the M.M.M on the gravestone : I found the code by myself (it was quite obvious) but it wouldn't work until I found the inscription on the ground wifing the grass. It is frustrating, illogical and destroys the immersion. This is not a key (you need to FIND a key), this is a code (you need to work it out by yourself). There are a lot of that : the nine skull heads (I found the solution before finding the paper), the three numbers on the bottom (although you can clearly see the code on the paper it won't work until you click the paper).
-Graphics : Colors are too bright, and the relevant things are hard to spot. As collecting bones and a skull are the key of a puzzle, you should get rid of all non-interactive bones and skulls of the screen.
Sound : The music doesn't match. Some sound effects would help.
Finished it in around 20 minutes. Was fun anyways.