this one contains some code from gba dev -theHive-.santa has lost his gifts and you must take a candy cane and head out to kick some monster butt.this crashes on visualboy and no$gba. if anyone confirms it working please PM or post a reply here.
I don't have a wii u anymore to test it myself, but if homebrews are not visible on the wii u menu I think you can press L + R + minus to open the plugin menu, there should be an option called "homebrews on wii u menu" or something similar