Thanks for posting into this thread.
The reason for the rejection is because the listing should contain words (even if translated) that actually exist on the packaging.
The image on this entry does not appear to be of the box, but from a magazine or some other type of paperwork. This is one problem.
The second is, we can only have the entry say "Dendy Classic" if it says that on the box. Otherwise, if this is a fan term, then it can go into alt name. So we need to know what the original Dendy console box looks like. Is it this one?
https://meshok.net/pics/35945806.jpgIf so then it can have a name like one of these:
Dendy Computer Game
Dendy Home Entertainment System Deluxe Pack
Steepler Dendy Deluxe Pack
Whereas any other words such as "Classic" or "Steepler" (if not used in the title) would be put into alt-name to help with searching.