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