Ravex in Tezuka World is an 18-minute short made by Japanese band Ravex featured in their first album. Although many events are based around the original series, the style and tone of the drawings resemble the 2003 series more.

Astro is found floating in space on a chunk of rock, and Ravex revive them with the power of music. They then meet Princess Sapphire, and then they dance with the rest of the Tezuka characters.