https://gamebanana.com/mods/441707 they are prob referring to this mod

Sonic Frontiers

Sonic Frontiers Category Extensions

About nintendo switch terrain mod

Gold_LKirb

Sonic Adventure DX: Director's Cut

Sonic Lost World

Super Mario Odyssey

Super Mario Bros. Wonder

Speedrun submissions will not be accepted until two weeks after release. Have fun and enjoy the game at your own pace!

Paper Mario: The Thousand-Year Door (Switch)

Submissions will be available 2 weeks after the official release (November 8th). These 2 weeks serve to help the moderation team create main categories, the IL leaderboard and respective rule-sets. Until then feel free to join and help the community with your findings and personal bests on the freshly opened SXS Generations-[Discord](https://discord.gg/M6CyCfC6M7)