second, open your backyard monster and open cheat engine 6.0
third, choose your bowser in the cheat engine.., if you are using firefox,
choose the plugincontainer.exe ...if using google chrome...
choose the third or fouth process name as chrome.exe
In this case i'm using opera
fouth,click hex,
change value type to array or bytes,
click ASROM,
uncheck fast scan
fifth,in the box next to "hex" type "85 D2 74 45"
then, click first scan
many address should return
six, Disassemble the memory in white colour address one by one until u see two je on the same screen without scrolling down the disassemble software.
change this first je to jg
then, upgrade something
you will see the changes...
you can used this hack untill u are happy with your yard.
then bank any of your twig pebble or gao or putty to save the record
here the video