Hey. I am so confused by all of this. A little help about which emulator to use?

Hi, I just started using this and i wanted to know how you can tell which emulator to use. I am trying to run games that were released in Japanese (Mainly fire emblem games) and I don't know which emulator to use.
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by the way, I use a mac.

Ok...wrong place to ask but I can help a little.Google this."no$gba 2.6"You may need to chenge the settings...but the jap language can't be changed unless the english is built in or just find a patch to change it.If one exist.

no$gba doesn't wor with Mac it seems, go for DeSMUme for NDS Emulator.
Or Visual Boy Advance for GBA games.