Each character in Persona 3 Portable has a specific weapon type they can equip. The Protagonist can use one-handed swords, Yukari uses bows, Junpei uses two-handed swords, Akihiko uses fists, and Mitsuru uses rapiers. Weapons primarily increase a character's Attack stat, affecting their physical damage output. Stronger weapons can be purchased from the Police Station, found in Tartarus chests, or obtained as rewards from Elizabeth/Theodore requests. Always aim to equip the strongest weapon available for each character. Some weapons also come with special effects, such as increased critical hit rate or status ailment infliction, which can be very beneficial in combat. Regularly check the Police Station for new stock after clearing a Tartarus block.
