Problem With OpenEmu

Hello everyone,
I'm Kinda new with emulation and i recently joined Emuparadise to play some games on my Mac. ( Version 10.11)
So I downloaded Openemu and also the Rom starter pack. They are quite a few game who are actually working (Except GBA games).
My problem is when i download on your website games for Nintendo DS i can't add them to OpenEmo ( it's rare) or they go on "Arcade" and i can't launch them. So I Ask you how can i solve my problem ? Also i don't understand what are the "Bios" needed for exemple for GBA.
Thank to help me and sorry if there is already a post for this :)

Retroarch is a far better emu solution (both Retroarch and OpenEmu are not emulators just frontends for the Libretro core system, Retroarch is the only Official one though).

A bios is not needed for GBA but very few games need it in order to function properly, I forgot which one exactly but I was told by devs.

I tried to download Retroarch but it doesn't work : there is an error when i want to extract..
There is no way to use OpenEmu for Nintendo Ds Games ?

Quote:

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Originally Posted by Horacio69

I tried to download Retroarch but it doesn't work : there is an error when i want to extract..
There is no way to use OpenEmu for Nintendo Ds Games ?

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I believe so but I am a windows/Linux Mint user.

I have very few friends that are familiar with Retroarch on mac.

Here is what you want, you are on 64 bit right? - http://buildbot.libretro.com/nightly/apple/osx/x86_64/

Scroll all the way to the bottom and grab the latest build, I am not sure as to the difference of the 2 versions but I can ask the devs for a little explanation.

I use Desmume sometimes in Retroarch and I love it, I mainly use my real DS though. :P

You might want to go through the wiki on github, it covers most of these items.

https://github.com/OpenEmu/OpenEmu/wiki