The art that is found on the box art of Atlantis: The Last Resort actually is nowhere to be found back in the game. And anything that is in the game, does not come back on the boxart. It seems like the box art is created independent of the game.
I was always wondering why the boxart of Atlantis: The Last Resort did not show any screenshots of the game. Almost every game wants to expose itself a little on the back cover by showing some ingame screens. Atlantis did not. The critics were not really positive about the game, so I must be crazy that I loved Atlantis (knowing the technical marvel it is) - I enjoyed every level of it and while I had some trouble getting a clear view in the bonus levels (the blue graphics were disorienting me) I made it until the end. After 20 levels. It's just today that I noticed on the back cover that dutch readers were actually promised 40 levels, while other languages only offered 20 levels :)
Do you remember you could open the disc tray of your CD-i player while playing, taking out the CD-i disc and inserting a audio CD to listen to your favorite music while playing!
The game was developed by Philips ADS, who also created Arcade Classics and Pac-Panic on CD-i. With these boxarts ofcourse Namco needed to approve it and with Atlantis they could go their own way.