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