"A Robo Cannon is a cannon that appears at the start of nearly every custom robo battle in the center of the holosseum. It rotates and fires Robo Cubes onto the Holosseum."@en . . . "A Robo Cannon is a cannon that appears at the start of nearly every custom robo battle in the center of the holosseum. It rotates and fires Robo Cubes onto the Holosseum."@en . . . "Robo Cannon"@en .