This Will Automatically Install the Wii Hombrew Channel using the Zelda Twilight Princess Hack. Process should take about 15 seconds and it only has to be done once. This is the no time limit version of the Homebrew Channel enjoy.
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
Or when your player dies, you can say in code, if enemy exists, do nothing, but if enemy does not exist, then create enemy at certain spot. (This would be a pain tho for lots of emeies)