thanks for your answers I found the tutorial I was talking about that works with no usb loader or anything, simply by putting it like a real game and launching it directly.
tutorial by our friend perpi66
with video
different from the method proposed.
the useful files
-NSMB Wii PPF Patches
-ppf-o-matic3
-Wiiscrubber140
-MakeKeyBin
Download the archive here:
2-launch Wiiscrubber and choose the NSMB iso
3-extract the main-dol
4-open ppf-o-matic3, put the extracted main-dol as iso and main.dol.PAL.ppf as patch, click apply.
5-back to Wiiscrubber, right click on main-dol and replace it with the patched main dol.
there you go, just burn the game with nero, put it in the console and launch it like a real game, works one hundred percent.