“cut a promo” is pro wrestling terminology for “make a speech about how you are going to defeat someone (while also summarizing the soap opera plot that got you here and why the audience gives a shit and so on)”

in all of the commercials the guy is like “I, Giancarlo Esposito, am too powerful for you, the player. You, the player, suck at video games and I, Giancarlo Esposito, will win the video game as an NPC in the game” even though he was nominally in character, and it was very funny