The game adds the concept of the 'portal gun' from the Portal series the player can click with the mouse device on two separate surfaces on the level to create a portal between them. 2D platform game, where the player controls Mario via the keyboard, running and jumping through levels, avoiding or jumping on enemies to defeat them, while collecting coins to earn points towards their score. The core game of Mari0 plays directly from the 8-bit Super Mario Bros. The title screen of the game with a custom outfit equipped on the player

An update to the game titled Mari0: Special Edition was planned for release at an unknown date, however it was cancelled in 2015 following technical constraints. It was well-received by critics for its creativity and simplistic concept. The game quickly gained traction through online blogs and news sites, and has been downloaded nearly 1.6 million times. Wii – however, after they viewed a Dorkly video entitled Mario With A Portal Gun, they settled on the idea of including a portal gun and other elements from the Portal series. The pair's first idea was to implement a four-player multiplayer system similar to the one seen in New Super Mario Bros. It was made with the LÖVE game framework.ĭevelopment began in 2011 as a direct port of the original Super Mario Bros. The game features Mario armed with a ' portal gun', the main game mechanic in the Portal series, allowing him to create two inter-spatial portals on 2-dimensional surfaces which can transport himself, enemies and other objects through them. It combines gameplay elements from Nintendo's Super Mario series and Valve's Portal series. Mari0 (pronounced 'mari-zero' or 'mari-oh') is a 2012 side-scrolling platform video game developed by German indie developer Maurice Guégan with creative input from Sašo Smolej and released onto their website.

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