In 1986, a new version of the Atari 2600 was released, unofficially referred to as the 2600 Jr. With its introduction came a resurgence in software development both from Atari and from third parties. Indeed so popular is the system that 21 years on, homebrew games for the system are still being made and sold by hobbyists with several new titles available each year. How could you overlook a massive 128 bytes of Ram.
Atari 2600 emulators
Atari 2600 Jr only on ebay