10 Best Robin Episodes Of How I Met Your Mother

Many How I Met Your Mother fans consider Slap Bet to be one of the best episodes in the series, and with good reason. The episode introduces two of the best recurring elements in the show: Marshall and Barney's Slap Bet, and Robin Sparkles.

When Robin refuses to go to malls, the gang all wonder why. Ted suspects she was married in a mall, while Barney's mind, as it always does, goes right to pornography. Barney is so convinced Robin did porn that he places a slap bet against Marshall, which Barney ultimately loses, giving Marshall the opportunity to slap him five times whenever he wants.

Meanwhile, Ted tries to trick Robin into admitting she was married in a mall, and while Robin eventually says that he's right, she goes back on it, revealing it was a lie to cover up the truth, and feeling awful that she can't trust Ted.

After they make up, Barney shows them a video of Robin's embarrassing secret, which turns out to be the music video of Let's Go to the Mall, a song she performed when she was a Canadian teen pop star.

Slap Bet is such a funny and ridiculous episode that also takes a look into who Robin was before joining the gang. At this point, her past is more of a mystery than anyone else's, so exploring her history helps develop her character and leads to some laughs.