In Yu-Gi-Oh! GX Tag Force, he arrives on the island alongside Umiuma and Mokuma after the player has completed the game with three of the Tier 1 characters as partners. He requests the player's assistance in UmiumaCorp's feud with Sanzyudai Yuki. Should the player agree, after winning a Tag Duel with Inoso as a partner, he and his companions can be selected as partners for the Tag Force tournament.
Tag Force 2
In Yu-Gi-Oh! GX Tag Force 2, Inoso can appear in a special story event at the Ra Yellow dorm, partnered with Senjome, if either Syrus or Tyranno has been defeated in duels at least 15 times. After defeating them, both Inoso and Senjome can be selected as tag partners.
The player is able to give Inoso sandwiches. The following tables detail how much he likes or dislikes the sandwiches.