Execute the following moves to use the corresponding weapon.

Naginata (female characters): Press Away + [Left Punch] + [Left Kick] + [Right Kick].
Sledgehammer (male characters): Press Away + [Left Punch] + [Left Kick] + [Right Kick].
First weapon: Hold Away and press [Left Punch] + [Left Kick] + [Right Kick].
Second weapon: Hold Away and press [Left Punch] + [Right Punch] + [Right Kick].