Crimson armor protects Rubanoid effectively from attacks. He shoots red energy waves from his mouth and attacks by shooting hard blades fast and mercilessly. His Battle Gear is Destrakon Gear. Erupter is a good friend of Splice.
In Skyscraper, Erupter appears at the train station to Hurricanos's tallest building. He says "Hey, Splice!!!!! sup?" and decides to go along with him and BC. He and Splice then explain knowing each other, catching up throughout the episode, making Hikari jealous.