You want to "know" how to play the roms from here? If you are using a gba micro-you need a flash card for it. Google "gba flash card" You need to put the games inside of the card and then it will work. otherwise get a gba emulator for pc-no$gba is the best (2.6a)
Sorry for being off topic (as well as reviving the topic), but, people still buy Gameboy Micro? Who falls for that? It's a smaller Gameboy Advance, who cares?
Off topic : You,my friend.Remember this,every person have different taste.Not all people are the same.You can't make people feel like what you want.In his eyes,whether the Gameboy Micro is the one he can afford to,or at least the one he likes to use.