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