Costume Quest is scheduled for release today on the PlayStation Network and the team over at Double Fine Productions has released a final trailer for the game as well as somewhat of a developer diary. If you’re not aware already, Costume Quest is a Halloween-based roleplaying game in which you go out in search of tons of costumes all with their own properties and attack options such as the Epicorn (epic unicorn)!

We’ve included the Developer Diary below featuring Tim Schafer and Tasha Harris from Double Fine Productions.

And below here, we’ve included the trailer that features your epic dose of unicorns and more!