Strong Fist

Strong Fist is Guy's and Lee's characteristic fighting style, the purpose of which is to cause external damage and break bones. The exact opposite of Gentle fist which is used, in general, by the Hyuga Clan. This style of fighting involves smashing your opponent and is generally used only by extremely powerful and physically dominating shinobi.

Trivia

 * Sasuke and Kakashi do not actually use this style, but rather use the key elements and a few techniques that were copied with their Sharingan from Rock Lee and Might Guy.
 * Naruto uses this style in Naruto: Ultimate Ninja 2 as "Taijutsu Naruto" and in Naruto: Ultimate Ninja 3 as "The Green Beast".