Mr. Robotube first appears in disguise in RUNNER as Radbot. In the intro cutscene in FATE, the Radbot disguise breaks down and reveals himself as Mr. Robotube from the Robotube Games label, now known as Minivisions. In FATE, he is appears as a power-up. Mr. Robotube's bullets go in a double helix pattern. In BIT.TRIP RUNNER, you meet him in TENACITY in the stage Radbot, named after his disguise.