UK - Super Mario Odyssey is Switch's biggest launch, beat all Wii U software debuts, Switch at 300k, The GoNintendo Archives

From the GoNintendo Archives

Now that Wonder has released what are your thoughts on Odyssey as top Mario game for Nintendo switch? : r/SuperMarioWonder

Nintendo has sold over 22 million Switch consoles, Mario Odyssey, Kart, and BOTW top 10 million sold

Nintendo's Splatoon 3 Launch Sends Stock Soaring on Record Switch Game Debut - Bloomberg

Super Mario Odyssey: Switch's next big technical showcase?

News - November, 2023

News - September, 2019

For those who are still not convinced Super Mario Odyssey is a sandbox platformer game, here's a picture of the official Japanese breakdown of what this game is. : r/NintendoSwitch

Sand Kingdom Power Moon 84 - Where the Transparent Platforms End - Super Mario Odyssey Guide - IGN

Report: Here are the possible Wii U launch titles leaked by Blockbuster UK