Street Fighter Alpha
Street Fighter Alpha 2
Street Fighter Alpha 2 Gold
Street Figther Alpha 3
Street Fighter Pocket Fighter
All of which are arcade perfect and they also included SFA3:Upper and HSFA with a billion new isms including Marvel-ism, DS-ISM, CE-ISM, 3S-ISM and all the original SFA/A2/A3 isms and fighting styles. Plus there is a insane amount of dipswitch settings so we can play all the different versions that were released in the US (and Japan too, if I am not mistaken).
It's only $30.00 so buy this game bitches!! (Y)
The info written here is for the Jap version and a few things have been taken out from the US version(basically some of the arranged versions of SFA2/A3)