Interesting post.
I checked my YJA pictures.. and here are the very few i can add my contribution.
L'empereur - KCS-008
my most interesting find
Uncharted Waters 2 - KCS-019
it's small but visible on the front cover
Nobunaga's Ambition: Sengoku Gunyuuden - KCS-001
we already have that entry but my pics are completely differents, could the actual pictures be a sort of slipcase or something..?
Romance of the Three Kingdoms Heroic Legend - KCS-025
i can't be 100% sure since there's no visible catalog number, but the back cover is different from KECH-1062's back..
To be honest, i never paid lot lot of attention to these KCS catalogs.. but i am pretty sure i encountered a lot on YJA without saving the pics..