PSA: Talk to Calendar Man in Batman: Arkham City today

Eager Trophy and Achievement hunters likely already know the deal: today is Halloween and Calendar Man, a Batman villain obsessed with holidays and dates, is looking for a little company. If you talk to him in Batman: Arkham City on twelve different specific holidays (you can see the exact dates on a calendar next to his cell in the basement of the courthouse), you can earn the Story Teller Achievement/Trophy.

Of course, you could cheat your way through this by changing the date on your console, though we'd hardly condone that. The Batman is not known for taking shortcuts.

This article was originally published on Joystiq.