2 Games in 1 - Sonic Advance + Sonic Battle / release rz4epgy0 / correction
Suggest a correction Double Pack - Sonic Battle & Sonic Advance, Game Boy Advance, JP
Corrections are GitHub issues on the public data repository, so each one is in the open with its evidence. This page fills the issue in; on GitHub you say what kind of evidence it is and submit (a GitHub account is needed). How corrections are checked.