Continuing on with the theme of costumes means the Kingdom Hearts games are next. Sora and co. change their gear with every world they enter, but there are two real main reasons for having these games on your Halloween list. The story becomes more convoluted as the games progress, naturally, but at the core of it all remain the themes of redemption, friendship, and, of course, the conflict between light and dark. It's a lighthearted take on the concept of battling the darkness within us all that carries with it a certain tone with it that perfectly suits the cold, dark autumn nights.
More to the point, though, is the visit to Halloween Town! In both mainline games, you'll visit Jack Skellington and friends and battle the Heartless that manage to terrify even these monsters. The sequel puts you in Christmas Town—still in Halloween getups—excellently recreating the juxtaposition of happy and spooky that makes the film so enjoyable.