We know it's the multiplayer mode because you can also see what appears to be Luigi in these videos too, making it the only gameplay footage we have of Luigi in the original Super Mario 64.

It can be assumed that Luigi would have been playable, as Shigeru Miyamoto had planned to make Super Mario 64 2 multiplayer – in fact, the first playable demo level was multiplayer. The Switch ...

Super Mario Party Jamboree juggles a few too many ideas at once, but it still mostly delivers a reliable hit of multiplayer fun.