The cute heroic mouse creature in Moss is called Quill. Though Quill does not speak to the player Quill does communicate through squeaks and actions to help the player. Recently the team decided to see if adding sign language as an option to communicate would be well received. The above tweet was met with great response and it looks like it will be incorporated as a feature in this already excellent looking PSVR game.

Moss will be Polyarc's first title but the team is made of ex-Destiny and Halo developers so the force is strong with them.