Viper

The Viper (変化弾 (バイパー)) is a Trigger developed for Gunners and Shooters.

Abilities
The main feature of Viper is its ability to change trajectory while in motion. However, it is easier to come up with patterns in advance and then choose whichever one is needed. Izumi and Nasu are the only Shooters that can create formations spontaneously.

Trivia

 * The viper is a family of venomous snakes. Snakes have many vertebrae which allow for increased flexibility, which is similar to how this Trigger is flexible in changing trajectory.