Cemu is a Wii U emulator that has been in development since October, and it has taken great leaps forward in terms of being able to successfully emulate current games on the Nintendo console. The latest video shows the utility running Mario Kart 8.
This is a great improvement over where the emulator was when version 1.1.1 was released back on November 19, when it could barely handle the menu screen, even on a high end machine with a GTX 980 card. The emulator now runs the game itself, albeit with some limitations in terms of visual effects.
The 1.1.2 update included a fix where synchronous file operations no longer block CPU execution. It also improved shader emulation, texture/depth/color buffer management, CPU timing and thread synchronization. Controller options and support for OSCoroutine API were added as well. A minor 1.1.2b made minor tweaks as well as fixes for AMD support.
The developers released a comparison video between versions 1.1.1 and 1.1.2b, and the improvements in the later version are starkly highlighted. Gamers interested in Cemu can visit the official site.