Halloween episodes are always fun because of costumes, and in How I met Your Mother it isn't different. I loved the costumes of Marshall and Lily, not just the ones of this year but their memories about wearing Cher and Sonny. Marshall was just too hilarious as Cher.
The other fun part is Barney with all his costumes hitting on the hottest girl but trying to get a new first impression and also messing with Ted by wearing a penguin costume and getting the Kahlua cocktail. The scene where he is dressed up as a devil and another guy as an angel telling Ted what to do is also pretty funny, especially when the angel asks for some weed.
We see more of Robin's commitment problems when she is dumped by a guy for not wanting to do couple stuff. Her munching on that brownie they were sharing was a good one.
The other fun part is Barney with all his costumes hitting on the hottest girl but trying to get a new first impression and also messing with Ted by wearing a penguin costume and getting the Kahlua cocktail. The scene where he is dressed up as a devil and another guy as an angel telling Ted what to do is also pretty funny, especially when the angel asks for some weed.
We see more of Robin's commitment problems when she is dumped by a guy for not wanting to do couple stuff. Her munching on that brownie they were sharing was a good one.