Outfits can be unlocked for each character in Campaign Mode. Outfit medals can be acquired by depleting a certain boss's HP to 0, though an outfit medal will not always drop. The following medals are drops from the corresponding boss.
Character - How to unlock
Akira A - Akira (Campaign 5)
Avdol A - Avdol (Campaign 3)
Caesar A - Wamuu (Campaign 1)
Caesar B - Caesar (Campaign 2)
Diavolo A - Narancia (Campaign 4)
Diavolo B - Diavolo (Campaign 5)
Dio A - Dio (Campaign 2)
DIO A - DIO (Campaign 1)
DIO B - Iggy (Campaign 2)
Dio B - Jonathan (Campaign 3)
DIO C - Giorno (Campaign 4)
DIO D - Cool Ice (Campaign 4)
Eiffel A - Eiffel (Campaign 1)
Ermes A - Ermes (Campaign 1)
Fugo A - Fugo (Campaign 2)
Giorno A - DIO (Campaign 1)
Giorno B - Bucciarati (Campaign 3)
Giorno C - Giorno (Campaign 4)
Giorno D - Mista (Campaign 5)
Gyro A - Caesar (Campaign 2)
Gyro B - Valentine (Campaign 3)
Gyro C - Bucciarati (Campaign 3)
Gyro D - Gyro (Campaign 4)
Iggy A - Iggy (Campaign 2)
Ikuro A - Ikuro (Campaign 5)
Ikuro B - Ikuro (Campaign 5)
Johnny A - Jolyne (Campaign 1)
Johnny B - Joseph (Campaign 2)
Johnny C - Johnny (Campaign 3)
Jolyne A - Jolyne (Campaign 1)
Jolyne B - Jotaro (Campaign 1)
Jolyne C - Ermes (Campaign 1)
Jolyne D - Johnny (Campaign 3)
Jolyne E - Anastasia (Campaign 4)
Jolyne F - Pucchi (Campaign 5)
Jonathan A - Zeppeli (Campaign 1)
Jonathan B - Dio (Campaign 2)
Jonathan C - Jonathan (Campaign 3)
Jonathan D - Narancia (Campaign 4)
Jonathan E - Esidisi (Campaign 5)
Joseph A - Eiffel (Campaign 1)
Joseph B - Joseph (Campaign 2)
Joseph C - Rohan (Campaign 3)
Joseph D - Hol Horse (Campaign 4)
Joseph E - Esidisi (Campaign 5)
Josuke 4 A - Shigekiyo (Campaign 1)
Josuke 4 B - Josuke 4 (Campaign 2)
Josuke 4 C - Old Joseph (Campaign 3)
Josuke 4 D - Okuyasu (Campaign 4)
Josuke 4 E - Josuke 8 (Campaign 5)
Josuke 8 A - Fugo (Campaign 2)
Josuke 8 B - Anastasia (Campaign 4)
Josuke 8 C - Josuke 8 (Campaign 5)
Jotaro A - Jotaro (Campaign 1)
Jotaro B - Josuke 4 (Campaign 2)
Jotaro C - Avdol (Campaign 3)
Jotaro D - Hol Horse (Campaign 4)
Kars A - Kars (Campaign 2)
Kars B - Lisa Lisa (Campaign 3)
Koichi A - Shigekiyo (Campaign 1)
Koichi B - Koichi (Campaign 2)
Kosaku A - Kosaku (Campaign 4)
Kosaku B - Akira (Campaign 5)
Lisa Lisa A - Lisa Lisa (Campaign 3)
Noriaki A - Noriaki (Campaign 5)
Okuyasu A - Okuyasu (Campaign 4)
Old Joseph A - Old Joseph (Campaign 3)
Old Joseph B - Noriaki (Campaign 5)
Pucchi A - Pucchi (Campaign 5)
Rohan A - Yoshikage (Campaign 1)
Rohan B - Koichi (Campaign 2)
Rohan C - Rohan (Campaign 3)
Rohan D - Kosaku (Campaign 4)
Rohan E - Mista (Campaign 5)
Valentine A - Valentine (Campaign 3)
Wamuu A - Wamuu (Campaign 1)
Wamuu B - Kars (Campaign 2)
Yoshikage A - Yoshikage (Campaign 1)
Zeppeli A - Zeppeli (Campaign 1)
