Special advertising Game&Watch

Recently two very rare and special Game&Watch were sold on eBay. It was a Mickey Mouse and a Popeye, both from the Wide Screen Series.
Both are special advertising games and they don't carry the G&W logo! Instead, each of them has a logo from another company imprinted. Obviously these are a kind of advertising games, ordered by those companies. It's unknown how many of them where manufactured and what the companies did with them. Probably they did give those games away to their best customers or maybe on a competition.

Link to the Popeye auction | Link to the Micke Mouse auction