as part of a Halloween update. Follow these steps to trigger the transformation: Enter the Ritual Stage
Once Mal0 is unlocked, you can access further customization options introduced in the LCPT 0.2.999 update : how to unlock mal0 in lovely craft piston trap exclusive
Reach the "climax" of the piston scene while the ritual conditions are met. This action triggers the secret unlock for the new mob. as part of a Halloween update