Also known as: パンジャンドラム
A bizarre World War II-era British experimental Weapon intended to be used to destroy concrete bunkers for landing operations. Appeared as a pair of wheels welded to an Explosive drum and propelled with rockets attached to the wheels.
The weapon has gained meme status in Japan through its sheer absurdity and Besiege Voiceroid Let's Plays by Niconico/YouTube user Tarachan (Taratya19800).