Brainwaves are mental forces of the oversoul that interlink the minds of Route 50 members across vast physical distances, leading to simultaneous utterances of a common thought or idea. The sharing of a brainwave is the result of two members' minds channeling their thoughts through the same transcendental frequency, into a common location such as the Chat Tower. Sharing brainwaves is usually a telltale sign of a ninja.

Frosti is a frequent recipient of brainwaves, while Twill is a frequent producer of brainwaves.