Portal hopping with Mari0

You take the original Super Mario Bros, give Mario a portal gun and what you get is Mari0. And as you may guess, it is awesome.

Mario Stencil (Photo credit: Dr Case)

The geniuses at Stabyourself.net made a good job of recreating the level design and gameplay of Nintendo's Super Mario Bros, only they made Mario carry a portal gun which the player can aim and shoot using the mouse. Add to that a multiplayer mode supporting up to 4 players (each with his own portal gun), a level editor, the ability to play using different map packs and also a bunch of personalization tweaks and fun cheats you can mess around with. It's a great retake on a classic, and once you unlock the unlimited time cheat you basically have endless hours of sandbox fun ahead of you.