A platform game (or platformer) is a video game characterised by requiring the player to jump to and from suspended platforms or over obstacles (jumping puzzles).
Retrogaming, also known as old-school gaming, is the hobby of playing and collecting older computer, video, and arcade games. These games are played either on the original hardware, on modern hardware via emulation, or on modern hardware via ports or compilations.
Participants in the hobby are sometimes known as retrogamers in the United Kingdom, while the terms classic gamers, or old-school gamers are more prevalent in the United States
It must be possible to control these jumps and to fall from platforms or miss jumps.