らんま½ 超無差別決戦! 乱馬チームVS伝説の鳳凰 (1994)

In this animated short, poetry-spouting high-school swordsman Tatewaki Kuno comes into possession of the egg of the legendary phoenix, which is said to grant its owner incredible powers. A shopkeeper sells the egg to Kuno on one condition: "Never, never, in any circumstance, put the darn thing on your head."