My X-men does not match the scan for the standard version.
No poster version has no cart scan. Ray you have credit for front scan of that variant.
You can actually blame me for all of these.
X-men was an Extra Media image that I moved. I'm going through my Sega Genesis items now, but unfortunately it will be quite some time before I get some scans up.
Sonic 3 had an Accolade/Ballistic release I think, but unfortunately I don't own it.
The Part #/No Part# variations are new to the database. They're due to different manufacturing regions (Made in Japan has Part #s, others don't I believe).