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