ryuusei no rockman 3

can someone help me, i tried to download ryuusei no rockman 3 on my desktop and when the download was completed i tried to use it on my no$gba but it wouldn't work and it just came up with something in japanese when i tried to run it. please help me, tell me what to do?

Did you extract it? If not, or if you don't know then read here: https://www.romulation.org/forum/index.php/topic,3880.0.html