Mari0 | 2 Player Co-op becomes VS Mode! | Super Mario Bros. Meets Portal

What happens when “friends“ play Portal Mario together [Mari0] ✪ Subscribe for more content: ✪ Become a BTG Member: ✪ Check out Lair’s channel here: ✪ Play Mari0 here: ✪ Thumbnail by: NicoBros » YouTube: »Newgrounds: »Official Site (WIP):