This is a complete Japanese Mega Drive set of logos, including those released outside Japan, SegaRetro was used as a base and every game, even software checked and a clean database was created, I'm including two databases, one that has all entries, including the software releases, the other without them.
While I basically did 250+ logos myself, a lot of them were taken from various sources, including this forum, some from Deviant Art, some from the Launchbox database site. There were cases where I had to redo a bunch of them, so they all should match their box art counterparts.
Expect a pack of 3D boxes and carts later today.
No-Intro's naming isn't 100% accurate so many fixes were made during the database build up, for instance, "Contra: The Hardcorps (Japan)" is wrong since what's written in Katakana is "Contra: The Hardcore", anyone that'd like to make sure, just check SegaRetro for more info about the game names.