Y'know I've never actually played NES Remix, probably should, I've heard good things about it. Regardless it's neat to see the Nintendo World Championships branding come back I guess.
@tkhn23 I imagine that if you went through with any of the ideas you've proposed in this thread, then you probably would've just done more damage to your Wii.
Seriously, just get a new one man.
There have been numerous threads on this site where people have tried to downgrade their system menus, none of them have ended well. I'm not sure I've heard of any Wii not showing any signal as a result of downgrading though.
I used to be big into lego sets when I was a kid. I did build the question mark block set with my brother a couple years ago, but that's about it, although I do really want that piranha plant.
It's the best protection for Wiis that can't install BootMii as boot2 after Nintendo patched the vulnerability that allowed it on later consoles. And like others have said here, it's never a good idea to downgrade your system menu.