Thanks for your comments, everyone!
Unexpectedly, I've got one more cart to show you. Remember when I wrote that Street Hoop had a "shady repair" and I didn't want to put that in my cab? That was me bein' a total n00b
I've mistaken that blue capacitor for a repair, but it's absolutely original and 100% normal, as depicted on mvs-scans (I still have to understand its function, but I'm sure someone on this forum could enlighten me).
So, here it is: after a good cleaning, the last original cart saved from the mud (not a rare or valuable game, but a very enjoyable one)