Platform games are video games where the player character walks and jumps across platforms suspended in midair. The most popular platform game of all time is Super Mario Bros., which was released in 1985 for the Nintendo Entertainment System (NES). The main objective of platform games is to progress through levels with obstacles and enemies while avoiding falling from suspended platforms. The player may have the ability to jump, double jump, or use rope climbing to avoid obstacles or engage in combat with enemies when they are present.