I'm planning to get a gameboy micro to cram a hundred gba games onto but I don't know which one to get. I read all the reviews but it's a hard descision.
supercard?
The GBA reviews are a bit outdated. If you want to cram hundreds of games on, you should get a card with external (removable) memory. You can use the M3 (mini SD or micro SD), the G6 Lite in a GBA case, EZIV mini SD or the larger capacity EZ3 cards.