I present to you CEMU, world's first Wii U emulator capable of running and rendering commercial games!
Quick facts:
Can run encrypted Wii U images (WUD) and RPX/RPL files
Internal resolution is 1920x1080 (if supported by game)
Contains only some optimizations. Expect slow framerates and long...
I made a little tool to compress Wii U images/dumps.
How does it work?
It detects duplicate sectors and only stores them once. Essentially this leads to all the empty ranges being shaved off, storing only ranges which contain file or filesystem data.
Although the algorithm is simple, it works...