From Dead Island Wiki
Fury are special abilities fueled by accumulated rage. Each hero has a different fury skill. The meter for fury, called the "rage meter" is a red semi circle to the left of the health bar. When the rage meter is full, the fury skill can be unleashed by holding .
 Fury skills
|Sam B||Haymaker - Sam goes berserk and smashes everything with his brass knuckles.|
|Xian Mei||Bloodrage - Xian calls on all her martial arts training and deals with enemies with lethal precision.|
|Purna||Guardian - Purna rallies in the face of impossible odds, giving herself and her allies the ability to regenerate, a powerful boost to repair any damage and other attributes. Her skill also allows Purna to use her private sidearm even if she doesn't own a gun or ammo.|
|Logan||Bullseye - Logan turns into a weapon-throwing fiend, incredibly accurate and deadly, taking out several targets at once.|
- Source: Dead Island Instruction Manual.