Twister is a subset of Command Materia in Crisis Core -Final Fantasy VII-. They involve Zack spinning around several times to attack, hitting all enemies in a wide area and possibly hitting the same enemy multiple times.
The basic Twister attack, Assault Twister (回転攻撃, Kaiten Kōgeki?), deals only half the damage of a regular attack. The upgraded form, Assault Twister+ (回転攻撃・改, Kaiten Kōgeki Kai?), attacks with the force of a regular attack and is capable of dealing double damage. Assault Twister costs 8 AP to use, and Assault Twister+ costs 16 AP.
There are three other Twister attacks: Poison Twister (ポイズンターン, Poizun Tān?), Stop Twister (ストップターン, Sutoppu Tān?), and Death Twister (デスターン, Desu Tān?). Poison Twister and Stop Twister have a chance to inflict Poison and Stop respectively, while Death Twister has a chance to inflict Instant Death. Poison Twister and Stop Twister cost 16 AP, and Death Twister requires 20 AP. The different versions of Twister can be made through Materia Fusion, as none of them are available in the shop.
Twister is another term for a tornado. tornado is a violently rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud.A