Scream is a move that can be learned by a few (noisy) Pokemon. Strangely, Scream is learned at least seven times by Whismur and its evolutions. The move involves screaming to annoy oppossing Pokemon. It can also make them and the Pokemon Trainers go deaf (Or have their ear bleed.), which usually leads to rather short fights so that Trainers and Pokemon wouldn't go insane. The only way to counter this move is to either be deaf in the first place or have ear plugs on the Trainer and the Pokemon. Scream has a high chance of hitting opposing Pokemon, as the speed of sound is FAST. However, this can be avoided if your Pokemon breaks the sound barrier, making it unaffected despite the fact it will burn from the intense speed.