Every character has a gauge they can fill up and when it's full, they can activate something called Rampage. Pressing both analog sticks in will trigger in, and make your character a lot faster in both their movement and attack speeds, as well as take off any limits in regard to using their Killer Weapon.
There is one problem with Rampage mode, which happens if your opponent uses their Rampage at the same time as you. This will make both characters enter a deadlock, where they are meant to mash the shown button to fill up a bar in their favor. The winner of the deadlock will launch the other backwards.
