Stand behind the piston. Make eye contact with a zombie. Back into the trap hole area. The zombie follows. Once it drops into the hole, count to 1 (allow it to settle), then flip the lever.
Comprehensive Achievement Guide for Lovely Craft Piston Trap lovely craft piston trap achievement guide top
: Visit the forest area to gather resources or interact with characters like the Farmer Girl . Stand behind the piston
: Accumulate exactly 69 or 420 emeralds in your inventory. Note that each block of emeralds equals 9 individual emeralds for your calculations. lovely craft piston trap achievement guide top