Mari0 by Stabyourself.net is a fan-made action platformer that fuses Super Mario Bros. level design with Portal-style portal mechanics for Mac players. The game puts classic 8-bit stages under a portal-gun logic, turning familiar runs into spatial puzzles and momentum-based challenges. It ships with four-player local cooperative play, a built-in level editor, community mappacks, and cosmetic options. The title targets retro-platformer fans and puzzle players who enjoy creative, local multiplayer sessions and custom content creation.

What kind of game is Mari0?

You enter familiar 8-bit stages where standard platforming choices gain new consequence because portals change movement and line-of-sight. The game is a platformer at heart that recreates the original Super Mario Broslevels while adding a portal gun mechanic, so runs require both timing and spatial reasoning. Players solve traversal puzzles by placing portals on 2D surfaces and using momentum to reach otherwise inaccessible areas.

Does it support local multiplayer and custom maps?

Local play and creation are central to the experience. The title supports simultaneous four-player cooperative matches, and it offers a level editor plus community mappacks for extended content. Key player-facing systems include:

• Simultaneous four-player local co-op, each with portal capability
• In-game level editor for creating and testing maps
• Character customization with hats and color options

What does the game look and sound like?

The presentation keeps an 8-bit aesthetic, faithfully echoing the original Super Mario Bros. stages while adding Portal-themed test chambers that shift the atmosphere toward puzzle rooms. Audio and sprites match the retro palette, and the UI exposes editor tools and multiplayer settings directly, so players move between play and creation without separate tools. Visual clarity helps in precision jumps and portal placement on flat surfaces.

Is the learning curve demanding and how does progression work?

The Portal-infused puzzles raise the skill floor, so players encounter steeper mechanical demands than a straight platformer; some users explicitly noted the higher difficulty of Portal-inspired levels. Progression includes unlockable game modifiers and cheats that appear after completing the main run, which add goals for completionist players. The project is built on the LÖVE framework, and source files can be run with that engine for modding or advanced setup.

Mari0 rewards players who prefer inventive platforming experiments over simple runs

Mari0 suits players who enjoy rethinking classic platform challenges through spatial puzzles and iterative level design; it plays best with local teammates and creative time in the editor. Expect a learning curve that rewards experimentation rather than immediate pick-up-and-play comfort. For players who like to tinker with levels and test emergent solutions, the game offers a distinctive, replayable playground.