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