A bit hard to pin down exactly, the Creativity Contingent Card can be loosely defined as any card that requires a bit of lateral thinking, perhaps another card (maybe a blank, in the more extreme cases) in order to get anything accomplished. Note the difference between this and the Useless Card--this one is designed to provoke creative play, not waste a blank. It's easier to explain by example:
- One card depicted nothing but a Big Red Button marked "Push." You know you want to make something that would trigger upon doing so.
- Proactive Interference Cards: This card only affects dinosaurs. There are no dinosaur cards. Time to fill the void.
- Parameter Definition Cards: All it says is " X = 10." What can we do with X?