Achieve maximum Adrenaline Level

Completed "Nocea"

Completed "The Immortals"

Completed "Yltheum"

Completed "The Magnus"

Finish off a Cyberdemon with the pistol

Use 15 Energy charges

Visit Calico for the first time

Kill 20 enemies using the E-Combo

Kill 10 enemies in a row using only Gauntlet after obtaining the Revolver

Beat all the levels in "Knee-Deep in the Dead"

Soothe a crying BB and stop the crying for the first time.