 European units primarily use the PEGI rating system , while North American units use the ESRB rating system . The Wii supports the rating systems of many countries , including CERO in Japan , the USK in Germany , the PEGI and BBFC in the United Kingdom , the ACB in Australia and the OFLC in New Zealand . Homebrew developers have reverse @-@ engineered the function which Nintendo uses to recover lost parental @-@ control passwords , creating a simple script to obtain parental @-@ control reset codes . 
