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