A creeper is a common hostile mob that silently approaches players and then explodes which can destroy blocks and kill unarmored players on any difficulty (except for peaceful). When struck by lightning, a creeper becomes charged. When asked how creepers trigger their explosive nature, Dinnerbone said "They're so nervous that they shake a lot, and then this sets them off the same way as how rubbing two sticks makes fire". They are female. They always blush a dark green. They have a fear of cats.