Kyutai Panic Adventure!
"Orb Panic Adventure!" is a special crossover story featuring characters from One Piece, Dragon Ball and Astro Boy. It was created as part of many interactive crossovers screened at special events called Odaiba Boken-Oh to commemorate Fuji TV's 45th anniversary. It has yet to see a home release. In the following year it had a sequel called Kyutai Panic Adventure Returns!
(Source: One Piece Wikia)