StroopThe thinkiest filler you'll every play, Stroop will enflame your brain! Race to empty your deck before your opponents! Be prepared for your brain to bend in all sorts of ways, especially when the second round turns the rules on their head. Its a mind game where your own mind works against you. Stroop is a real time observation game based on the psychological Stroop Effect, which is a phenomenon caused by different functions of the brain interfering