Here is the full list of all 60 Guacamelee! Gold Edition achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Defeat the game on Hard mode
Defeat Calaca using only melee attacks
Defeat Calaca with Player 1 playing as Juanita
Connect with all six special attacks without touching the ground
Conquer the final column of arenas in La Caverna del Pollo as the Skeleton Luchador
Collect every chest in the game
Throw an enemy while playing as Juanita or Tostado
Buy all the items in the shop
Collect a health orb as the Skeleton Luchador
As the Pollo Luchador, find and talk to each of the four giant chickens with the green sombreros
Defeat a Chupacabra using only Slam
Complete Infierno challenge 14 using Goat Fly no more than four times
Complete Infierno challenge 17 as the Alebrije
Complete Infierno challenge 10 and challenge 15 as El Brody
Achieve a 300 Hit Combo
Complete the I AM ERROR quest
Complete the Mariachi Band quest
Defeat 5 arenas in Hard mode
Access the alternative ending (collect all orbs)
Defeat Calaca
Defeat Calaca with full health in Diablo's Suit
Defeat an Alux using only Headbutt
Headbutt an enemy off a cliff
Soar through the air for 12 seconds using "Goat Fly"
Complete the World's Greatest Enchilada quest
Complete All Side Quests
Complete the Combo Chicken quest (Defeat Poncho forever)
Complete the Chicken Thief quest
Earn a Gold Medal in all Infierno challenges
Earn a Silver Medal in all Infierno challenges
Earn a Bronze Medal in all Infierno challenges
Defeat Jaguar Javier
Defeat Flame Face
Destroy a Block using Dash Punch
Find an orb
Complete the Missing Doll quest
Redeem X'tabay
Uproot 20 plant enemies
Defeat an enemy as a chicken
Enter egg mode while playing as the Pollo Luchador
Defeat an enemy with its own projectile
Spend $10000 in the store
Destroy a Block using Slam
Teleport through an Olmec head
Find 100% of the hidden items in a single area
Kill the Alebrije
Defeat 3 giant skeletons
Complete a full heart upgrade
Complete a full stamina upgrade
Destroy a Block using Headbutt
Defeat an arena without taking any damage
Wake up an Alebrije
Discover Santa Luchita
Achieve a 150 Hit Combo
Destroy a Block using Uppercut
Talk to a Goat
Complete the Chicken Herding quest
Save Pueblucho
Become a Luchador
Enter the world of the dead