Submarine Panic is not exactly my kind of game, but as with most golden-era Hudson Soft games, they at least put some effort into it. A surprising amount of pink for a submarine combat game, but that's okay by me.

This was included in a pack of 10 games that I bought, all Hudson Soft, and although the owner didn't say anything about it, I suspect they may have all been unused, as the original tape is still in place and in great condition. Of course, you can open it from the rear and take the cassette out and play with it, but everything's just too immaculate in that 10-pack, so I don't think that's what happened.