Eyes of the Demon Trophy
Eyes of the Demon
Retrieve the ancient mask
This is story related and cannot be missed.
Shortly after beginning level 3 you will come to a stage where you need to jump on certain platforms to get to the top of a circular room. After you have completed this stage follow the objective marker to a room where a mask is sitting on a plinth, just enter this room where a cut-scene will occur, shortly after you will get the trophy.