Well…if the gamers wanted to hurt you, they probably would have done it by now- especially since they already know you're inexperienced. Going with them would also be a good chance to see what this whole predetermined reward thing is…

SEE: Sure, I can come along.
ROXAS: Alright, sweet!

The TCPs walk with you back up to the top floor of the room where the doors have reopened. Even if you didn't already remember which one was yours, the smoke billowing out of it made it immediately apparent which one was theirs.