That's what I like to know too. If Tanikugu2 isn't freeware I'm also interested in buying it, but the emailaddress doesn't appear to be working...
How can I get Yoshida Konzern?
Never heard about Tanikugu2! 
It looks quite nice!
... there are videos of about 12 stages! 
About music... maybe they managed to modify the editor to add new tunes... but it could also be added to the video itself. For example, when you kill a boss in Lübeck the music stops and in Tanikugu2 it continues playing... and there's also music while the MSXMagazine logo appears... of course it could have been modified in the code too, but...
How can I get Yoshida Konzern?
It's easy to find googling a little bit or looking at your mailbox or something
I'm bumping this idea for a project Imanok had. Since the menus are translated in a patch and the helptexts are translated in a separate document, it should be possible to make a (community) game with Yoshida Konzern as Imanok first thought up. Anybody still interested?
