: To complete the puzzle without removing items from the wheel, insert the bell , rotate counter-clockwise once, and then insert the shoe .

For a full visual guide on all achievements and puzzles, you can refer to the complete walkthrough on YouTube or the Steam Community guide for specific trophy requirements. Iris.Fall Achievement Guide - Steam Community

: To solve the cube puzzle on the first floor in only three rotations, press the turning buttons (numbered 1–6 from left to right) in the order: 4, 5, 3 .