The Anthopper Imagin (アントホッパーイマジン Antohoppā Imajin) is a pair of evil Imagin in Kamen Rider Den-O. They consist of cold-headed brother, Ari, who wields a shovel-like sword while its maniacal brother, Kirigiris, has a maniacal persona with a love for taunting his opponent and wields a viola-like sword.