Where do u get Protoman\'s chip, do u fight him or do u put it in Higsby\'s Shop?
I don\'t know

if it\'s in mbn1, fight him
mbn2,fight him
mbn3,fight him or buy it up at the counter in higsby\'s shop after a littleexperience

I got MMBN3 and right at the part before you fight Bass and Alpha in the WWW base.

After you beat the game go to hades isle you should be able to fight protoman.