Capsule Monsters is a 12-episode mini-series commissioned and produced by 4Kids Entertainment in the United States, and animated by Studio Gallop in Japan (with uncredited assistance from Dong Woo Animation in Korea) shortly after the conclusion of the original series.

This miniseries is an addendum to the first half of the final season of the anime, taking place after the Grand Championships but before the climactic Dawn of the Duel arc.

The miniseries was produced exclusively for international broadcast[citation needed], making it the only anime series in the Yu-Gi-Oh!

A short-lived board game, Yu-Gi-Oh!

Capsule Monsters Collectible Figure Game, was created based on this mini-series.