"Sparkle? Vampires don't %&#!*$ sparkle!"

One day only!

Sure, you can conjure up vampires, werewolves, witches and pumpkins in developer 5TH Cell's DS write-em-up Scribblenauts, but you can't summon this freebie in-game.

On Halloween, also known as this Saturday, publisher Warner Bros. Interactive Entertainment will be giving away a macabre level to all those who dare enter London Dungeon and seek out "its scariest representative."

All you have to do is bring your DS, your copy of Scribblenauts and be over the age of 12 (or accompanied by an adult) to ye olde Dungeon between noon and 3 p.m. to snag this exclusive Halloween-themed level. According to Warner Bros., this will be the only time this level will be made available to the public.

In case you can't make it tomorrow you can still console yourself by printing out Nintendo Life's exclusive 8-bit Halloween decorations and stroll through our look at the spookiest Nintendo characters. Or, you know, play Scribblenauts.