Street Fighter Zero 3 Upper is an updated version of Street Fighter Zero 3 (also known as Street Fighter Alpha 3). The game was released on the Sega Naomi hardware rather than the original games CPSII hardware.The updated version includes all the added characters from the console versions of Street Fighter Zero 3. Additional characters include Fei-Long, Dee Jay, T Hawk, Guile, Evil Ryu and Shin Akuma.