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