A platform game is a video game characterized by requiring the player to jump to and from suspended platforms or over obstacles (jumping puzzles). It must be possible to control these jumps and to fall from platforms or miss jumps. The most common unifying element to games in this video game genre is a jump button; other jump mechanics include swinging from extendable arms, as in Ristar

Ristar

Ristar, known as in Japan, is a platform game developed by Sonic Team and published by Sega for the Sega Mega Drive/Sega Genesis in 1995. A Sega Game Gear version, which features different levels than the Mega Drive version, was also released in the same year.The game stars a humanoid cartoon star...

or Bionic Commando, or bouncing from springboards or trampolines, as in Alpha Waves

Alpha Waves

Alpha Waves is an early 3D game that combines labyrinthine exploration with platform gameplay. By most definitions of the genre it could be considered to be the first 3D platform game, released in 1990, 6 years before the genre's seminal classic Super Mario 64...

.