Coco Educational Computer Game

Coco is an educational computer game that looks like it simulates a computer to learn how they work. This copy of Coco is in a fair condition box (Still has about half the shrink wrap on the box but it is not sealed) and includes a disk that is certainly bad (See the image) and an untested cassette tape. A dongle and the manual is also included. The install sheet is missing. Untested but the disk has little chance of working Price is a guess, I cannot find much on this anywhere.