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