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
Earn a Gold Medal in all Infierno challenges
Earn a Silver Medal in all Infierno challenges
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
Complete Infierno challenge 10 and challenge 15 as El Brody
Earn a Bronze Medal in all Infierno challenges
Buy all the items in the shop
Achieve a 300 Hit Combo
Achieve a 150 Hit Combo
Collect a health orb as the Skeleton Luchador
Defeat Calaca with full health in Diablo's Suit
Complete Infierno challenge 17 as the Alebrije
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
Defeat Calaca using only melee attacks
Defeat Calaca with Player 1 playing as Juanita
Throw an enemy while playing as Juanita or Tostado
Access the alternative ending (collect all orbs)
Defeat Calaca
Defeat a Chupacabra using only Slam
Headbutt an enemy off a cliff
Enter egg mode while playing as the Pollo Luchador
Complete All Side Quests
Complete the I AM ERROR quest
Complete the Combo Chicken quest (Defeat Poncho forever)
Soar through the air for 12 seconds using "Goat Fly"
Defeat Jaguar Javier
Uproot 20 plant enemies
Complete the World's Greatest Enchilada quest
Complete the Chicken Thief quest
Find an orb
Complete the Mariachi Band quest
Defeat an Alux using only Headbutt
Defeat Flame Face
Destroy a Block using Dash Punch
Complete the Missing Doll quest
Find 100% of the hidden items in a single area
Redeem X'tabay
Defeat an enemy as a chicken
Defeat an enemy with its own projectile
Spend $10000 in the store
Destroy a Block using Slam
Teleport through an Olmec head
Kill the Alebrije
Defeat 3 giant skeletons
Destroy a Block using Headbutt
Wake up an Alebrije
Defeat an arena without taking any damage
Complete a full heart upgrade
Complete a full stamina upgrade
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