>>15291157
Nintendo 64 emulation on the Wii, while still sucking balls, is the best N64 emulation that exists.
Try Not64.
Apart from that, just use a forwarder dol for USBLoader GX with integrated nintendont and put it into your Priiloader and voilà, you boot into unlimited games.
Famicon emulation works fine enough as usual, and with a classic controller, it's probably the most authentic experience you can get apart from an original SNES.
Recommended utility: Priiloader, BootMii, HomebrewBrowser, AnyTitleDeleter, WiiXplorer (for on Wii file modding and/or FTP Server), WiiBrowser (sucks though) and a savegame/memcard manager of your choice.
Also, when downloading ISOs you come across .wia file more often than not as they are oftentimes >50% compressed. Use a converter tool to convert it into a regular .iso that the Loader can use.
Don't forget to register your console with the Wiimfi (private) server project. USBLoader should use that server instead of the defunct original automatically, but you might read into that some more.