I mean on this site :
http://rvlution.net
There are copyright images used without permission, even viewing the site downloads them.
Well unless Nintendo decide to put them in the public domain, or they got permission.
You can't use a characters image (or even recognizable likeness) from a game without permission unless it falls under the "fair use" laws, which this doesn't.
Even if you do an ORIGINAL artwork of a character it's illegal unless you use it for "commentary, criticism, news reporting, research, teaching or scholarship"
So having copyright artwork, or even a "likeness" of a character without it meeting these conditions is illegal in the US, UK etc etc etc
Take for example my avatar, the monkey is from family guy. I can use it because the picture was public domain, if it wasn't then technically it would be illegal.
WiiPower once had some artwork for neogamma with "hulk" in it, he decided to drop that as he thought it was illegal, however it actually turned out to be a public domain picture ironically
Now say for example I hand sketch Mario, if you look at it and you know it's Mario (likeness) then that's illegal in many countries unless I'm using it for educational purposes, advertising, news etc etc. Even though I drew it myself. I can keep it to myself though, but the minute I use it to promote a product, site, service or anything I'm breaking the law (unless it's "fair use")
I don't need to explain more we all have the internet and can read more if interested, I only pointed it out because I thought it was ironic and quite funny tbh.
Linking to the site is actually against gbatemp rules (I think) Not that I care myself except for the lols
gbatemp doesn't use a character (or likeness) in it's log for this reason I suspect but is free to use the original artwork in reviews etc. Also gbatemp is not responsible or liable for peoples avatars either.
Anyway...lol
(still a great app though)