Brix DS is back in a new setting. The DS homebrew Brix happening now in version 3.0, including 16 new levels, which bears to 73 the total number Note that the last eight levels take place on the moon keeps the lunar gravity! On this, good luck!
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)