Super Big 2 (Chinese Traditional: 黑桃2 or Hei Tao 2) is an unlicensed cartridge game based on the card game Big 2 popular in many Asian countries such as China and Taiwan. It was ported to the Sega Mega Drive quite possibly by Chuanpu and an unknown developer who ported the SNES version. Although, the sound effects in the SNES version happened to be taken from Super Buster Bros. just like Tekken 2, Soulblade, Pokemon Stadium, Taiwan 16 Mahjong II: Horoscope Girls, and Mortal Kombat Mythologies Gold 2000 also all on the SNES. Similar to some Chuanpu and Gamtec games; the Sega Mega Drive port takes its sound effects from Wonderboy III: A Monster's Lair.
The object of the game is similar to any Big 2 card game as played in China; although, each port has diffrent options screen. Both versions allow you to change the rulesets. Additionally, The Mega Drive version would also allow you to select the design of your card deck and your own avatar; while, the SNES version selects diffrent designs for the card deck as you progress each rounds and allow you to only pick your opponent's avatar.