| The Past Revealed |
明かされる過去 非情！ギズモン: ＡＴ
"The Revealed Past—Heartless! Gizmon: AT"
|Airdate|| (Ja:) September 24, 2006|
(En:) March 31, 2008
|View on Wikimon|
(Numbers indicate order of appearance. Bolded characters are fought by the protagonist(s), and italicized characters feature non-explicitly, e.g. voice, silhouette, image.)
This is the first time Merukimon was mentioned to be part of the Olympus Twelve.