Alright, I haven't seen this posted yet, but if it has been, I'll put this on lockdown. I went ahead and 'translated' the boss rewards (read: compared the reward text to items and character names) and came up with the following list. Two things to note, the first is that the number appearing beside each reward is (I believe) how many medals it takes to unlock it (and level it up if it's already unlocked?) and secondly, as far as names go I'll use the following legend:
Zeppeli = William A. Zeppeli
Caesar = Caesar Zeppeli
Gyro = Gyro Zeppeli
Kira = Yoshikage Kira
Kawajiri = Kawajiri Kira
Now, onto the rewards list:
(00) Kira
Page 1:
Kira Costume A (00 / 01)
Rohan Costume A (00 / 01)
Kira Colour C (00 / 01)
Akira Colour C (00 / 01)
Kira Taunt Pose A (00 / 15)
Kira Taunt Pose D (00 / 15)
Page 2:
Koichi Taunt Pose A (00 / 15)
Josuke Taunt Pose D (00 / 15)
Rohan Taunt Pose A (00 / 15)
Kira Victory Pose A (00 / 15)
Kira Victory Pose D (00 / 15)
Koichi Victory Pose A (00 / 15)
Page 3:
Rohan Victory Pose D (00 / 15)
Rohan Victory Pose A (00 / 15)
Kira "??" Text (00 / 13)
Kira "??" Text (00 / 01)
(01) Fatty
Page 1:
Josuke Costume A (00 / 01)
Koichi Costume A (00 / 01)
Fatty Colour C (00 / 01)
Okuyasu Colour C (00 / 01)
Fatty Taunt Pose A (00 / 15)
Fatty Taunt Pose D (00 / 15)
Page 2:
Josuke Taunt Pose A (00 / 15)
Okuyasu Taunt Pose D (00 / 15)
Okuyasu Taunt Pose A (00 / 15)
Fatty Victory Pose A (00 / 15)
Fatty Victory Pose D (00 / 15)
Josuke Victory Pose A (00 / 15)
Page 3:
Okuyasu Victory Pose D (00 / 15)
Okuyasu Victory Pose A (00 / 15)
Fatty "??" Text (00 / 13)
Fatty "??" Text (00 / 01)
(02) Zeppeli
Page 1:
Zeppeli Costume A (00 / 01)
Jonathan Costume A (00 / 01)
Zeppeli Colour C (00 / 01)
Jonathan Colour C (00 / 01)
Zeppeli Taunt Pose A (00 / 15)
Zeppeli Taunt Pose D (00 / 15)
Page 2:
Jonathan Taunt Pose A (00 / 15)
Caesar Taunt Pose D (00 / 15)
Daivolo Taunt Pose A (00 / 15)
Zeppeli Victory Pose A (00 / 15)
Zeppeli Victory Pose D (00 / 15)
Jonathan Victory Pose A (00 / 15)
Page 3:
Caesar Victory Pose D (00 / 15)
Johnny Victory Pose A (00 / 15)
Zeppeli "??" Text (00 / 13)
Zeppeli "??" Text (00 / 01)
(03) Wham
Page 1:
Wham Costume A (00 / 01)
Caesar Costume A (00 / 01)
Wham Colour C (00 / 01)
Caesar Colour C (00 / 01)
Wham Taunt Pose A (00 / 15)
Wham Taunt Pose D (00 / 15)
Page 2:
Caesar Taunt Pose A (00 / 15)
Joseph Taunt Pose D (00 / 15)
ACDC Taunt Pose A (00 / 15)
Wham Victory Pose A (00 / 15)
Wham Victory Pose D (00 / 15)
Joseph Victory Pose A (00 / 15)
Page 3:
ACDC Victory Pose D (00 / 15)
Caesar Victory Pose A (00 / 15)
Wham "??" Text (00 / 13)
Wham "??" Text (00 / 01)
(04) Jotaro
Page 1:
Jotaro Costume A (00 / 01)
Jolyne Costume B (00 / 01)
Jotaro Colour C (00 / 01)
Josuke Colour C (00 / 01)
Jotaro Taunt Pose A (00 / 15)
Jotaro Taunt Pose D (00 / 15)
Page 2:
Avdol Taunt Pose A (00 / 15)
Okuyasu Taunt Pose D (00 / 15)
Akira Taunt Pose A (00 / 15)
Jotaro Victory Pose A (00 / 15)
Jotaro Victory Pose D (00 / 15)
Avdol Victory Pose A (00 / 15)
Page 3:
Josuke Victory Pose D (00 / 15)
Akira Victory Pose A (00 / 15)
Jotaro "??" Text (00 / 13)
Jotaro "??" Text (00 / 01)