So I'm posting this here, On SNES ROMS, What the heck do all the ! and a1 HC mean in the ROM name? Thanks in advanced...
They're just different little notations from when the ROMS are ripped... Kinda like how (U), (E), and (J) denote which country the rom came from orginally....
check out the thread at the top of the page in regads to opening another forum for all other outdated consoles.