Now the immediate difference I can see is the rating.
So the first two could be something like
(Geeignet ab 6 Jahren)
(USK 6)
Now for the second two that are using the 2003 rating, the S number on the back of each is different, and only one of them has "Komplett in Deutsch" on the back. So the options for those would be either
(USK 6)
(USK 6 / Komplett in Deutsch)
or
(USK 6 / S0026252)
(USK 6 / S1000689)
And to be clear, the rating options on the site for USK are only (technically) for 2009 and newer, not the ratings that are on these items, with exceptions being 6,12,16 for 2003 version.
Ref:
https://vgcollect.com/forum/index.php/topic,8623.msg145223.html#msg145223