Lovely Craft Piston Trap Achievement Guide Patched [upd] -

“Uh,” she said. “Is it supposed to do that?”

: You must use a piston to "bonk" a mob directly on the top of its head. lovely craft piston trap achievement guide patched

This achievement is often what players refer to when looking for a "piston trap" guide. It requires you to use the piston mechanic creatively. “Uh,” she said