Here is the full list of all 66 Super Mombo Quest achievements.
Defeat the King of Nightmares
Equip the Heart Stone
Buy all items from Alfred
Equip the Belt of Longevity
Collect all game coins
Reach the Maleficent Momboland region
Equip the Magic Magnet
Rescue the animals in the Maze
Rescue the animals in the Desert
Equip the Crystal of Power
Equip the Ring of Revenge
Equip the Lucky Underpants
Equip the Platinum Armor
Equip the Magical Coin
Buy all Philomen upgrades
Buy the Lightspeed Dive upgrade
Defeat the Evil Pigosaurus
Rescue the animals in the Tree
Rescue the animals in the Pyramid
Buy the Electric Duality upgrade
Buy the Punch of Steel upgrade
Equip the Locket of Renewal
Buy all Ursula upgrades
Buy the Reveal Fountains and Totems upgrade
Defeat the Lasercat
Buy the Rock Shield
Buy the Max Life upgrade
Store 15,000 crystals
Defeat the MegaDrill
Reach the Desolate Desert region
Collect 200 coins
Reach the Prismatic Pyramids region
Equip the Crystalline Piggybank
Rescue the animals in the Forest
Rescue the animals in the Volcano
Buy the Extra Slot upgrade
Buy the Gentle Combo upgrade
Reach the Mechanical Maze region
Collect 150 coins
Buy the Natural Boost upgrade
Buy the Volcanic Shield upgrade
Buy the Flaming Stomp upgrade
Rescue the animals in the Mountains
Store 10,000 crystals
Defeat the Swine Emperor
Reach the Voracious Volcano region
Buy the Reveal Nearby upgrade
Buy the Reveal Secrets upgrade
Collect 100 coins
Defeat the Green Smasher
Reach the Towering Tree region
Buy the Unstoppable Drive upgrade
Rescue Adamastor
Reach the Fungal Forest region
Defeat the Pigosaurus
Equip the Guardians' Shield
Equip the Grandfather Clock
Store 5,000 crystals
Rescue Ursula
Collect 50 coins
Buy the Crystalline Hunger upgrade
Rescue Alfred
Rescue Philomen
Reach the Monster Trail region
Rescue Thoma
Open a chest