Here is the full list of all 55 Save me Mr Tako: Definitive Edition achievements.
Inspires the jeweler to launch his career.
Beat the game in classic mode
Come back to see the princess' secret base
You've met a terrible fate, haven't you?
Find the princess back in the ruins
Beat all the bosses consecutively in Boss Mode
Locate the hidden room in the tower
Find Nova: https://store.steampowered.com/app/877810/Anodyne_2_Return_to_Dust/
Find a room hidden within the Catacombs
Beat the game with 100% completion
Find the mermaid cave
Discover the secret of the great temple
Find all 50 hats in the game!
Find the cave behind the waterfall
Find a legendary artifact from the past!
Compare your wigs!
Burt a rich house!
Remember Baby Tako & Bako
Hate the birds...
Find the final resting place of the legendary octopuses from the past.
Find OwlBoy: https://store.steampowered.com/app/115800/Owlboy/
Watch Bako escape Sarona with Lalabichoua
Your name is written on it...
Find the lost kids on Alpha Island
Reach 50 fans!
Save all children
She escaped!
Find Shovel Knight: https://store.steampowered.com/app/250760/Shovel_Knight_Treasure_Trove/
Master the dancing minigame. A star is born!
Revisit Enkidd's past
Help construct a new town
Find the Fox: https://store.steampowered.com/app/366320/Seasons_after_Fall/
Save your past for a bright future.
Meet the King of Cats
Witness Sam's tragic end
Recall Mireille and Eos
Win a fight against Mireille herself!
Obtain the magic mirror!
Beat the game without seeing the Game Over screen
Beat the game. Thanks for playing!
Melt a snowman!
Find half of the hats of the game!
Complete the third act of the game
What's in the Ydor Temple pipes?
???
Complete the second act of the game
See the dog dream.
Complete the first act of the game
Find Dropsy: https://store.steampowered.com/app/274350/Dropsy/
Rise through the ranks of the fight club!
Find Baguette (by Kekeflipnote)
Experience death by chicken
Become a Takoyaki master (but don't tell anyone!)
Master the crab minigame
Obtain your first hat!