Humpty Dumpty is the name for snacks from the company Humpty Dumpty Snack Foods. The snacks mostly are made of potatos. More information on Wiki.
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May West is the brand for a round dessert cake with a cream filling. It is made in Canada and is still particularly popular in the province of Quebec. It is currently produced by Vachon Inc., a subsidiary of Canada Bread. More on Wiki.
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https://www.vachon.com/en/pastries/may-west/#regulier

The company is specialized in lighting technology. Siteco now belongs to the company Osram.

The French company Cooper is active in security. It produces, among other products, safety and alarm systems.

The sticker shows the logo of Procida and the advertising of Artaban with the slogan «Le jeu de l'araignèe». Translation: «The game with the spider». Artaban is a pesticide of Procida. Procida was a France-based subsidiary of AgrEvo, based in Germany. AgrEvo merged into Aventis in 1999. Aventis was liquidated in 2004.

Procter&Gamble is a consumer goods company. The headquarter is located in Cincinnati, Ohio (USA). The company owns well-known brands such as Ariel, Gillette, Hugo Boss, Pampers and many more all over the world.

Matey is a fictitious word and stands for "ami / matelot", a company which manufactured soaps and shampoos for children in English speaking countries by that time. Picture of the box

03/07/2020 Update:

The true story being that these games were given out as xmas gifts to associates and workers of the photographic company who specialised in retouching photos for advertising agencies called Lifeboat/matey who were based in the Saatchi & Saatchi building in Whitmore street, London.

A owner of this game said, he was given it at xmas in 1993, at the time he was working for a big advertising agency on a project involving an 90s band called 'Cockteau twins', Lifeboat/matey were in the process of retouching photos for one of their album covers which the company he worked for was doing the advertising for, he actually said that he'd put it in a drawer and forgot about until now as he's moving house.

Lifeboat/matey as well as being in Saatchi & Saatchi's main building also worked with them on a lot of projects, they then merged with admagic and at some point bought out by another advertising company called TAG.

Thanks a lot to Tony Liversidge for providing this information.

Campari is an alcoholic aperitif liqueur of the Italian company Davide Campari-Milano SpA. But this game was given away in the Netherlands. Picture 2, Game closed | Picture 3, box

The Japanese company Pokka is active in the areas of beverages, food and hospitality industry. 500 of these promotional games were produced. Such an advertising game could get only those who had collected enough vouchers and then cashed in a particular business. This promo game was packed in a paper that has the Pokka logo imprinted. (Picture).

The company is specialized in lighting technology. Siteco now belongs to the company Osram.

The company Flamagas is mainly engaged in the production of lighters and cigarette paper and it was a distributor for Game&Watch in the 80's and 90's.

The game originally came from someone whose uncle was working for Flamagas back then. The uncle received two of the "Flamagas" Game&Watch, which he gave to two of his nephews. From there, on of the games went on to a Game&Watch collector.

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The company Petro Lewis is based in the USA and is now called Sunoco. It is an oil and gas company.

The previous owner got the game back in 1982. The Plessey Company plc was a British-based international electronics, defence and telecommunications company, originated in 1917. In 1989, it was taken over by a consortium formed by GEC and Siemens which split the assets of the Plessey group.
Source and more information about Plessey: Wiki

Nothing known.
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The company is specialized in lighting technology. Siteco now belongs to the company Osram.
A French collector has found out that the father of a earlier school friend used to work at Siteco, and he even had put away one copy each game!

There are no information on this company/brand known yet.
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Coral is a brand of detergents and is owned by the big company Unilever. Picture 2