This isn't some cute fan-inspired piece. It's not a comedy skit. This is a real game coming to OSX, Windows and Linux.
And it's gonna be free.
From the team Stab Yourself, MariO is a faithful adaptation of the original Super Mario Bros., except it supports simultaneous multiplayer and it has portal guns.
One can only pray this inspires a string of Portal + _____ games. Contra? Zelda? Ninja Gaiden?
Give this video a gander and make your day grander.
Ahem. Sorry. Just watch the vid.