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