If you want to test ric_rpi's work for yourselves it isn't an onerous process as the latest version will autocompile not just the emulator core but all the required plugins as well.
Install the required dependancies
sudo apt-get install libsdl1.2-dev
Download the source from Github (on the right you will see a Cloud symbol with Download ZIP, that's the link for the WHOLE master) and extract (uncompress). Or you can 'clone' it if you know how to do that!
Here - https://github.com/ricrpi/mupen64plus-rpi
CD into the folder and run the build script
Once completed add some ROMs, unzip them
Then CD into the 'test' folder and run the program along with the name and location of the ROM
e.g. ./mupen64plus /home/pi/mario.n64 (you can change the file name for easy typing)
As with all N64 emulation performance will depend on complexity of the program code (many publishers used their own micro code resulting in difficulty emulating by HLE (High Level Emulation)). This affects EVERY N64 emulator, I have yet to find one that emulates GoldenEye 'perfectly'.
d0vr I will be conducting some further testing today and will try Smash Bros