oh man, it'd be hard to say more without giving it away. well, it has something to do with lights in the game. the language used to convey the message can be used visually and audibly, electrically or mechanically. listen to Radioactivity by kraftwerk and you might just find out what it is.
haha that's super cool to hear. alright, i'll give it away. it's morse code! there are three lights that flicker in the world, and each one flickers a certain message in morse code. i'll leave two a secret, but the pink one that's shining on the crate in the middle says "In here" -- i'll let you try to figure out what that might mean