In Yu-Gi-Oh! GX Tag Force, he is often found at the volcano and speaks in a strange way, as if he was a robot. During duels, though, he speaks normally, although this is because of the game's pool of phrases shared by all Duelist 3 characters.
During the Tag Force tournament, he partners with Nova.
The player is able to give Corey sandwiches. The following tables detail how much he likes or dislikes the sandwiches.