which one should you get.M3 Simply or the GBA one

ive been to that place before but what gets me is which thing should i get? cause i asked this before(when my name used to be ace2020)and i didnt get anything

im thing of geeting my games on to the ds using scummVM but what do you need to get it to work? and whats best to use

anything new on the scummvm for wii