Knight (Dark Souls)
If you played Dark Souls, you're probably scarred for life by its unforgiving difficulty. Still, if you need another reminder of your love/hate relationship with the series, there are clothes for that, including the iconic knight attire.
If you've ever been to a Disney store or Disney theme park, you know that the corporation isn't afraid to merchandize its characters. You'll find clothes for virtually every film and cartoon, including our favorite street rat, Aladdin. (The monkey costs extra.)
Buzz Lightyear (Toy Story)
Disney's love of selling characters goods doesn't stop with Pixar, as more that a few of its stars are in the store. Though you could dress as one of the incredibly lame Cars characters, we prefer the futuristic dignity of Buzz Lightyear.
Ghostbusters jumpsuit with proton pack
This is a hard one to pass up for any child of the 1980s, as we think most of our friends went as Ghostbusters for at least one Halloween. You can further accessorize with pet sized versions of Slimer and the Stay Puft Marshmallow man.
There's no question you want this one (juts be careful of Sarlacc pits).
Apollo Creed (Rocky)
There's a nice Rocky collection, but why would you want to dress like that low rent Rocky Balboa? Wouldn't you rather look like the champ at his most patriotic? Let your Avatar give tribute to the late Mr. Creed.
Despite the restrictive content rules, you can still dress like a serial killer, so long as you're not carrying a weapon. That's the case with Scream's main villain, but sadly there's no matching Neve Campbell or Rose McGowan outfits.
This Voltron collection is much better than the forgettable XBLA game it's related to. The cats and other toys are sold separately, as are some nice shirts and pilot suits, though we'd rather go as the full Voltron. (Blazing Sword is extra.)
Gandalf the Grey (Lord of the Rings)
Lord of the Rings isn't as big on the Avatar Marketplace as it should be, but there are a few standouts. We really like this Gandalf the Grey costume (the staff comes separate), though we were bothered that the ladies' version of the outfit has no beard.
Professor Chaos (South Park)
The other identity of South Park's hard luck student/Melvin Butters Stotch, the timid and easily manipulated boy takes on another personality when he enters his closet. He turns into Professor Chaos, bringer of destruction and doom! Now your Avatar can become the most dangerous man on the planet for only a few hundred MS points.