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