Ok, The Firemen wasn't released in the US, but it was released in Europe, so it doesn't need translating. How about the following games though, they are definately Japan-only:
Front Mission 2
Fire Emblem
Tactics Ogre
Out of the above, I would rather see Tactics Ogre more then the other two. Who knows, maybe there already is a patch for it, don't really follow them.
CrowTRobo