I've been writing with the player who did not realize that the game could not be completed. If possible, it would be a good idea on the starting screen of the game, to tell players that this version (the Adventuron version) cannot be completed - they have to play the Spectrum version if they want to complete the game.
Viewing post in Colour Beyond Time Parts 1&2 (Adventuron) comments
Part 3 is here https://jbizzel.itch.io/colour-beyond-time-adventuron-part-3 - I was working on a version for the spectrum NEXT, it uses some of those images.