Here is the full list of all 35 Hotline Miami achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Kill the panthers using Brandon the Panther
Kill the crapping gangster with a fireaxe
Clear chapter 2 using Nigel the Bat
use all throwing weapon at least once
use all guns at least once
Kill three or more enemies with the same brick in one throw
Go to the car 60 times
use all melee weapon at least once
Perform a 12x combo
Perform a 10x combo
Get A+ on all the chapters
Collect all the masks
Beat the epilogue with secret ending
Solve the puzzle
Find Jones The Crocodile
Complete chapter five barehanded
Beat the epilogue
Collect all the puzzle pieces
Beat the mainstory
Unlock all weapons
Die 1000 times
Perform a 8x combo
Perform a 6x combo
Destroy 200 glass panels
Kill 1989 enemies
Kill 99 dogs
Throw a weapon at an enemy so that his weapon hits another
Kill two enemies with the same brick in one throw
Get an A+ on any chapter
Perform a 4x combo
Use a human shield
Kill an enemy with a brick bounced against a wall
Wear all masks at least once
Perform every ground kill in the game
Unlock all achievements