Video Game: Mari0

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 Stabyourself.net.

This game contains examples of:

  • Ascended Glitch: The exit pipe the brings the player to the flagpole in 1-2 has an intentional non-solid tile in the upper left of the vertical pipe, in which the player can portal themselves up to it while big, slide through, and go down the first pipe in the Warp Zonenote  to enter the Minus World. The player can also use the editor to clear a wall through the exit pipe and get to the Minus World easier.
  • Camera Screw: In the co-op mode, the screen used to scroll to accommodate the foremost player. Anyone else who fell too far behind got screwed unless the foremost player went back, or unless the player who fell behind managed to catch up with portals. A later update added a splitscreen to fix this.
  • Co-Op Multiplayer: 4-player simultaneous, and each player gets his/her own portal gun.
  • Crossover: Not just Mario and Portal, but it also has a Minecraft mode and Sonic Rainbooms too.
  • Downloadable Content: One even includes The Lost Levels. Thankfully you have the Portal Gun this time.
  • Dungeon Bypass: In addition to the ones present in the original game, the portal gun allows you to creatively get around some obstacles. Use portals for a perfect 5000 flag catch every time, portal behind Bowser to hit the axe, portal Bowser behind you to do the same, and many more.
  • Easy Level Trick: Only one player needs to reach the goal to complete the level in a co-op game. This can be used to bypass several companion cube puzzles.
  • Game Mod: These appear from time to time on the forums, taking the form of additional map packs and major mods that add more items/enemies/objects to the game.
  • Hoist by His Own Petard: Hammer Bros. can be killed by their own hammers sent through portals. Humorously, this used to extend to the hammers of other Hammer Bros. as well; a pair of them often thinned themselves out when the one in back started throwing. This was patched in version 1.4.
  • Knockback: An unlockable cheat has Mario ricochet behind himself whenever he shoots with the portal gun.
  • Konami Code: Entering it at the title screen unlocks the cheats without having to complete the Super Mario Bros. levels first.
  • Level Editor
  • Medley: The map pack ''SMB Extended'', which combines both Super Mario Bros and The Lost Levels into one mappack. A mod only compatible with 1.6 must be used to run it.
  • Nintendo Hard: Subverted for the original and The Lost Levels, since the portal gun is pretty much a Game Breaker, though a few downloadable map packs play this trope straight.
  • Nostalgia Level: Up to Eleven. Literally the entirety of the original Super Mario Bros. is playable. The entirety of The Lost Levels is also playable, as well as a few other miscellaneous remakes, including ROM hacks.
  • Obvious Beta: Downplayed with the open beta, where the only eye-openers are characters having "-unfinished" in their names, and you can't go onto Adhesion/VVVVVV Gel with a mushroom. The level editor also crashes quite a bit now due to all the new features added, and ported 1.6 maps can crash in SE's editor due to missing the "Buzzy Beetle Half" entity.
  • Off Model:
    • Thanks to a rather well-known sprite sheet where most of this game's sprite work was based on, Buzzy Beetles appear to bop up and down as they move, with one of their rows growing an extra pixel in size in one of their frames. Even with how obvious this error is and with fixes available, this was not fixed in SE.
    • From the same sprite sheet, we have incorrectly-colored Overworld coins.
  • Ratchet Scrolling: Averted, even for the levels that otherwise look and act very much like Super Mario Bros..
  • Retraux: 8-bit graphics, obviously, to duplicate the style of the original Super Mario Bros. Averted with the Portal objects and tiles, as they're more detailed.
  • Shout-Out:
    • The hats available include Rainbow Dash's mane (it's possible to perform the Sonic Rainboom with one of the cheats enabled) and the eponymous striped top hat of The Cat in the Hat. Many hats from Team Fortress 2 are also available.
    • The six additional background colors following the standard three (Sky, Water, and Black) are based on the coat colors of the Mane Six.
  • Shown Their Work: Some fan-based map packs are re-creations of very unknown versions of Super Mario Bros., one of these being the PC-88/Sharp X1 pseudo-sequel Super Mario Bros. Special (available here), and another of a ZX Spectrum tech demo. A port of the original The Great Giana Sisters is also available.
  • Software Porting: Averted. The developer created the source code from the ground up, in order to avoid the legal wrath of Nintendo, as well as accommodate for new physics and fix bugs not present in the original game. However, there were many quirks and bugs present in the first release of the game that have since been ironed out, and even up to 1.6 and the beta version of the Special Edition, several objects/features both used and unused in vanilla SMB1note  aren't present, leaving it up to modders to restore these missing contents.
  • Special Edition: It hasn't been released yet, and it's only release date is 'before Half-Life 2: Episode 3.'
  • Suspend Save
  • Unwinnable by Mistake: Quite a number of fan-created mappacks tend to suffer from this.
  • Virtual Paper Doll: Mario's sprite is customizable and can be recolored however you like, and you can even give him a variety of silly hats, mostly from Team Fortress 2.

Alternative Title(s):

Mari 0