If your Chromebook supports Linux (Beta) and it isn't disabled by an administrator, this provides access to more "desktop-class" emulators. Simple64 (formerly mupen64plus-gui):
For more advanced users or those with higher-end Intel/AMD Chromebooks, using the built-in Linux environment can offer better performance and more accurate emulation. How To Install Dolphin Emulator On ANY Chromebook n64 emulators for chromebook
