So I found something

[Woody]

So I'm happily plodding along in World C, level 1, got the star and sigils, when I stumble across this:

http://steamcommunity.com/sharedfiles/filedetails/?id=466893236

Anyone know what this is for?
Using it does not seem to do anything.

[Hala]

It's an easter egg, look around on the island In rock groups on the main island, 1 along the beach by the bridge and 1 under the bridge and you'll find pieces to a statue you can assemble.