While Gunzerking is in the process of cooling down you gain bonus Gun Damage, Melee Damage, and Grenade Damage.
Fistful of Hurt
Press [melee] to throw all your weight into a punch, causing massive damage and knocking back the enemy.
Fistful of Hurt also has a cooldown.
While Fistful of Hurt is on cooldown, [melee] will perform a regular melee attack.
Bus That Can't Slow Down
Increases your Movement Speed while Gunzerking.
Shooting an enemy decreases Cooldown on Gunzerking.
This effect can only occur once every 3 seconds.
Ain't Got Time to Bleed
While Gunzerking, you Regenerate Health.
The lower your current health, the more powerful your Regeneration.
Down Not Out
You can Gunzerk while in Fight for Your Life.