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