Flying-Squirdle (ムササビードル Musasabīdoru, 23, Rider vs Shocker & Rider vs Ambassador Hell) - A Japanese giant flying squirrel monster. Able to fly at high speeds, creating a slipstream strong enough to tear apart nearby targets. His emblem, worn by the soldiers of the base that modified him, is a flying squirrel. Attacked the Osumi Laboratory for missile components, but was stopped by Kamen Rider 2. Attempted to recover the components later, only to be destroyed by Kamen Rider 2's Rider Kick.