I'm trying to get Quake and Doom work for Wii U. I don't mind if I have to use vWii but I'd like to use RetroArch's WiiU ports for the (assumed) better performance. The problem is, Retroarch just doesn't load, or, if I load an individual libretro core, it stays at a black screen and I have to power cycle my WiiU. How do I get Quake and Doom working on my WiiU? Preferably without the vWii.