With possibly the best hardware of the 16-bit generation, the Neo Geo was a step ahead of the competition. Not in vain was it marketed as a 24-bit console. However, it never reached mainstream adoption due to its huge retail price and the lack of games in comparison with Nintendo's and Sega's boxes. Nevertheless, it had a strong cult of dedicated gamers that enjoyed the games it had, such as Metal Slug. Many Neo Geo games were direct ports of its arcade counterparts, so it's very possible that you've played them, even if you've never touched a Neo Geo!