Here is the full list of all 40 Blacksad: Under the Skin trophies - there are 23 bronze, 13 silver, 3 gold and 1 platinum.
Get all trophies in the game.
Complete the Hall of Fame album.
Complete the Baseball sheet of the Hall of Fame album.
Watch all 6 alternate scenes at the end of the game.
Complete all deductions in the game.
Complete the Hockey sheet of the Hall of Fame album.
Complete the Football sheet of the Hall of Fame album.
Complete the Boxing sheet of the Hall of Fame album.
Find all false endings in the game.
Complete the game without dying a single time.
Contribute to as many deaths as possible.
Interact with as many books as you can.
Why's that poster in Dunn's flat?
Get hired twice for the same case.
Take 400 nightstick blows. Maybe a few less.
Do not take the case.
Complete the game dying less than 9 times.
Now for real.
Solve the case.
Take your sixth beating.
Do not scare Brunhilda while telling her a story.
Beat someone up for once.
Play baseball.
Complete Blacksad's silence conveniently.
Play good cop convincingly.
Play bad cop convincingly.
Take your fifth beating.
Put your acting skills to the test.
Stand up to Quince as many times as you can.
Help the Colberts live a second honeymoon and receive their gratitude.
Charm Helen Moore into giving you a present.
Take your fourth beating.
Buy a box of cigarettes from the nursing staff.
Take your third beating.
Enjoy a limo drive around New York.
Buy your favorite goat a second burger.
Stand up to Sam as many times as you can.
Take your second beating.
Find your most valuable tool.
Take your first beating (spoiler: it won't be the last!).