Nintendo’s red plumber mascot has gone to some bizarre places over his multi-decade history, including in his latest globe-trotting adventure, Super Mario Odyssey.

Just like Mario, this official interview with Super Mario Odyssey producer Yoshiaki Koizumi below also goes some strange places that is surprising for an interview posted on Nintendo’s Youtube channel. Right off the bat, Koizumi gets asked about Mario’s lack of a belly button, while also addressing questions regarding Toad’s head, hidden secrets and more.

Super Mario Odyssey is out now on Switch, which our review calls “a title no Switch owner should be without.”