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