Here is the full list of all 82 HoloCure - there are Save the Fans! achievements.
Defeat the Boss of Stage 2
Defeat the Boss of Stage 3
Defeat the Boss of Stage 4
Defeat the Boss of Stage 1 (Hard)
Defeat the Boss of Stage 2 (Hard)
Defeat the Boss of Stage 3 (Hard)
Clear a Stage in Time Mode
Unlock all characters.
Unlock and use a character's Special.
Reach 10 minutes with Cutting Board or related weapons using certain characters.
Complete a stage using Plug-In Type Asacoco
Have 1,000,000 coins.
Clear any stage while using Sake.
Reach level 50 in one game.
Reach level 100 in one game.
Be defeated while using Halu.
Eat over 50 hamburgers in one game.
Deal over 1000 damage in one attack.
Deal over 10000 damage in one attack.
Clear a game of Stage Mode without moving at all.
Clear a game of Stage Mode without using Special after unlocking it.
Complete a stage while using Super Chatto Time.
Pet Bubba as Amelia Watson
Get 4 Collab Weapons in 1 game.
Defeat a Yagoo.
Defeat a Silver Yagoo.
Be defeated by a Yagoo.
Drop a super item.
Clear a stage in Hardcore Mode.
Get a weapon to +10 enhancements.
Clear with only your main weapon.
Fail enhancements 5 times in 1 run.
Fail a +1 > +2 enhancement.
Clear with Halu item level 5.
Survive to 30 minutes with Halu item level 5.
Defeat a 10 or 20-minute Boss in under 10 seconds.
Leave a boss alive for 5 minutes or more.
Level up 5 times in a row within one second.
Complete the armory.
Watch the credits to the end.
Get over 100% crit chance in a single run.
Achieve 1,000,000 score in a single run.
Watch the TV for 10 seconds.
Huh?
Complete all achievements. Then go outside.
Go to Holo House
Annoy another member.
Harvest a plant.
Catch a Shiny Fish
Steal a fish from another member.
Cook a dish.
Get 10 combos in the fishing minigame.
Get 50 combos in the fishing minigame.
Catch at least one of every kind of fish.
Harvest at least one of every kind of crop.
Level a worker to their maximum level.
Get Manager Level 4
Retire a Worker.
Collect 100,000 HoloCoins from workers at once.
Clear a stage with no items.
Use the Golden Hammer
Clear stage mode without having any Character Skills (Fandom off)
Don't take any damage for 5 minutes.
Choose the Haste Stat Up option 10 times when leveling up.
Wait out the entire 15 seconds on Iofi's special without drawing anything
Clear a stage only choosing the first option when leveling up without rerolls.
Clear a Hard stage without taking any damage from projectiles.
Clear a stage with Main Weapon at level 1 only.
Clear a (Hard) stage without taking any Healing Items.
Have over 500 HP in 1 run.
Lose after 10 minutes in a game.
Enhance a weapon once.
Complete your first game.
Have 5000 coins.
Defeat at least 5000 targets in a stage.
Defeat the Boss of Stage 1
Defeat a Golden Yagoo.
Take a total of over 500 damage in one game.
Open a Super Box.
Defeat Fubuzilla.
Use an anvil
Destroy a Yagoo statue