An iPod click wheel game or iPod game is a video game playable on the various versions of the Apple portable media player, the iPod. The original iPod had the game Brick (originally invented by Apple co-founder Steve Wozniak) included as an easter egg hidden feature; later firmware versions added it as a menu option. Later revisions of the iPod added three more games in addition to Brick: Parachute, Solitaire, and Music Quiz. These games should not be confused with games for the iPod Touch, which require iOS and are only available on Apple's App Store on iTunes.