"Game Night" is the 15th episode in the first season of the television series How I Met Your Mother. It originally aired on February 27, 2006.
Anytime Marshall, Lily, Ted, Robin, and Barney hold a game night together, Marshall always wins, no matter what the game is, so the others decide that he should always run game nights. Marshall decides to create his own game, "Marshgammon", which few people understand (although a player must drink if they ask "What?"). Ted plans to bring Victoria along, and tells Marshall, Lily, and Barney not to scare her off; all reluctantly promise not to try to ruin things, but they end up trying their hardest. At game night, Marshall uses the game questions to find out more about Victoria, while Lily reveals that someone gave her a videotape to give to Barney, and once Barney figures out who it is, he panics, destroying a tape of Ted's graduation before Lily revealed that she had hidden the real tape. They watch it, and find a longer-haired, hippie-sh Barney, singing and playing a keyboard while crying. Barney ejects the tape and walks out, and no one can find him.
Barney meets all of them at the bar, and only tells his story once everyone else agrees