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