Mario Bros. is a platform game developed and published by Nintendo as an arcade video game in 1983. It was designed by Shigeru Miyamoto and Gunpei Yokoi, Nintendo's chief engineer. Italian twin brother plumbers Mario and Luigi exterminate creatures, like turtles (Koopas) and crabs emerging from the sewers by knocking them upside-down and kicking them away. The Famicom/Nintendo Entertainment System version is the first game produced by Intelligent Systems. It is part of the Mario franchise, but originally began as a spin-off from the Donkey Kong series.

A platformer is a sub-genre of action video games in which the core objective is to move the player character between points in an environment. Platform games are characterized by levels with uneven terrain and suspended platforms of varying height that require jumping and climbing to traverse. Other acrobatic maneuvers may factor into the gameplay, such as swinging from vines or grappling hooks, jumping off walls, gliding through the air, or bouncing from springboards or trampolines.