Michael Jackson's Moonwalker (Arcade) taste test promotion

Hi Lost Media Wiki Forums, while I've created a few articles for the wiki itself this is my first time making a thread here. A few days ago I was looking on the talk page for Michael Jackson's Moonwalker on Wikipedia and a noticed a mention of a Pepsi promotional campaign by user Sp0. They say quote "I distinctly remember that there was a famous Pepsi promotion going on with this. It was a taste test involving two unmarked cups with Pepsi and Coke. I am not sure about the details because I did not take the taste test. However, I remember people who did take the taste test, and they were given a game card after the taste test. The game card allowed players to put maybe unlimited credits into the game by swiping a card reader that was next to the coin slot." The thing is I can find no mention of this campaign anywhere else on the net. I'm not really an experienced lost media searcher by any definition so I thought it might be worth bringing to the attention of y'all so we can hopefully get more info on the topic.