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