I didn't know where to post it, but I assumed here it was okay. [I don't blame the mods if they migrate the thread.]

I want to get the Simpsons Arcade Game. However, the 4 player version, which is what my sights are set on, has two different "sets" according to MAME's list of machines. I will get set 1 for sure since set 2 is a clone of it, but before I get set 2, I want to know, what are the exact differences between sets 1 and 2 of the Arcade Game's 4-player version??