The Game Gambler

The Game Gambler is a British YouTuber who makes letsplay-style content for an audience of Sonic fans, and is the leader of Power Ring. He and Matt are great friends, and have collaborated several times, with Gam making an appearance on Matt Reviews, and Matt making appearances on Gam's livestreams. As of 2020, Gam makes the majority of visual assets for The McGuinness Experiment.

As a subscriber
Gam found Matt's channel via RIP Cybershell, Matt's first breakthrough video and tends to enjoy Matt's brand of cynical adult humour and the cynical aspect of some of Matt's content. You will regularly find Gam in the comment section, which led to his inclusion in The Notification Squad.

As a friend
Gam and Matt get on like a house on fire, to put it bluntly; in fact, Gam is one of the select few people Matt will turn to in order to get secondary opinions, purely because he knows Gam doesn't really judge some of the wacky stuff Matt comes up with.

The two have a similar sense of humour and already seem to understand exactly what each other is thinking instantly. This has led to several in-jokes such as stuff to do with Arnold Schwarzenegger and Kermit the frog (the latter of which Gam does a great impression of), and on the rare occasion, both at the same time.

Matt trusts Gam's judgement and takes on board any criticism given by him, and it's fair to say that the two are close friends, despite never having met each other in person.