Even experienced players mess these up. Avoid these errors:
If you don’t want to risk your save file with a Piston Trap, there are safer ways to fill your roster quickly: lovely craft piston trap unlock all characters
Before you can unlock characters, you need to understand the tool that many speedrunners use to access secret areas: the Piston Trap. Even experienced players mess these up
Here is the honest truth: There is no single button or trap that instantly unlocks every character in the game legally. this comes with significant risks.
The Piston Trap method is essentially an exploit. While some players report success in unlocking premium characters by tricking the game's save data, this comes with significant risks.