Ok so all you have to do is download this demo from the system
and put this save file on your harddisk of the NGP
Just load up the game and click wololo's last stand game save. When you get past the loading screen knife your team mate and the game will automatically reset, now go into settings/system info and you will see that you are now on 1.04 ChickHEN
Please rate and subscribe and thanks for watching!
(WARNING: What ever you do is at your own risk, I nor wololo have forced you to do this nor put a shotgun to your head, what ever you do with this system is the same as what you do in the bathroom, your fault.)
NOTE: only tested on WiFi version.