While they look accurate they seriously need some vector drawing to eliminate all the pixelated edges to say the least.
Also, the font on the back needs to be changed to Helvetica/Arial.
Alright, I can fix the font. In honesty, I had kind of eyeballed it. Thanks, its nice to know the correct font to use.
As far as revectoring them, I don't know if I could do that. I mean I guess in theory I could, but its not really "my thing" so I dunno how long it would take.
The covers that are currently on the site have the same images, well, with some small tweaks to Clu Clu Land where the french text actually overlaps over the image, but it came out really well. So at least its correct in regards to the source material.
If someone who is more skilled at vectors, such as Wiggy, or someone else wants to take a stab at it, I'd be happy to share the PSD files for my changes for the North American box art.