Dying Will Mode, also known as Deathperation in the Viz translation, is a mode that can be taken when a person is shot with a Dying Will Bullet or when swallowing a Dying Will Pill. It's the first type of Dying Will Mode that Tsuna uses in the series. After the Varia Arc, Dying Will Mode stops making excessive appearances, as Tsuna and other users switch to Hyper Dying Will.