Everything About Fiction You Never Wanted to Know.
Now you're-a thinking with-a portals!

Mari0 (2012) is a fan-made Crossover between Super Mario Bros and Portal. You're Mario, and you have a portal gun. You can play through the classic levels from the original NES game (but with portals!), try and solve the Aperture Science-themed puzzles based on Portal and Portal 2, or even make your own levels. There's a Co-Op Multiplayer mode too--up to four players can play simultaneously, much like in New Super Mario Bros. Wii.

The game is available as a free download at its homepage on

Tropes used in Mari0 include: