Angrish: In the Pharoah's Tomb video, he progressively breaks down into anger as he recalls loving the game as a kid, but hating it now because of the level's Malevolent Architecture and poor hit detection.
He really doesn't like invasive DRM (security features in games to stop them from being pirated. An always-online requirement is a good example of this.) He actually used the fact that it was riddled with DRM as a reason for not including Diablo 3 anywhere on his list of the "Top 17 games of 2012."
Proprietary ports also strike a nerve with him. Understandable, as this creates plenty of No Backwards Compatibility In The Future scenarios with the retro gear he acquires, and this, makes it hard if not impossible to get them running.
He starts off most videos with a hearty "Greetings!"
Corpsing: Happens a lot in the "LGR Plays" videos:
In the Train Simulator 2012 video, his train derails... except instead of just going off the tracks, it flies through the air as if he hit a nuclear bomb.
In the Barbie Super Sports video, he discovers a completely pointless "feature" in the in-line skating mode: a water fountain at the store. He is insanely amused by it, and laughs probably even harder than he did in the Train Simulator incident.
It's debatable in the Goat Simulator video if he was trying to keep a straight voice, since the game is silly by nature.
Double Entendre: He will drop one whenever he can get away with it. For example in his NCR-386 review...
"It's just particular in how it likes its disks inserted. I suppose if I had big black disks stuck in me all day I would be particular as well."
Early Installment Weirdness: Aside from his first video mentioned above, he made quite a few console reviews before finally settling on computer gaming.
Funny Background Event: At the beginning of his Sims 3 University review, he shows a few other games in the background as he holds the cover up, as a typical opening to his videos. One of them is the 2013 SimCity reboot, with "DRM" written in Sharpie over "City." It later shows up in the review of SimCity itself.
Invoked in LGR Plays Skyscraper Simulator, where starting a game provides an obnoxiously loud screech. Naturally, it's brought up multiple times as the main reason that This Is Gonna Suck.
In his Creative Game Blaster review, he found playing Test Drive 2 wasn't exactly the best choice of game to play with the sound card.
He had to turn off the sound when reviewing Vette! because revving engine was done through the PC speaker which he describes as "instant ear rape".
Hiroshima as a Unit of Measure: Whenever possible, he measures devices using completely nonsensical items for scale. For example, when reviewing the Compaq Contura Aero, it was the same width as a PSP candy case and the length of a set of large keys.
Let's Play: His "LGR Plays" series, where he plays through both old and new games for about 20 minutes or so. Unlike standard Let's Plays, he doesn't continue any series past one episode, the only exceptions being his Duke Nukem 3D playthrough and a three-part playthrough of Wasteland, if only because his party died on the third episode.