This version is based on the original Windows 95 version written by Jerremy Koot. Porting the emulator to DOS was done by me, Chad Kitching. It terms of what SNES hardware is actually emulated, most graphics registers are emulated to some extent. There is no sound emulation at all and the lack of this causes problems for some ROMS. The mosaic effect, background clip windows and background color addition and subtraction are also not implemented.