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