Linchpins of Sokoban

A puzzle game exercise that seeks to have a linchpin. Once understood, the pieces fall into place! The game itself is a modified level of Heroes of Sokoban, which is a modified rule set of puzzescript Sokoban.

Controls:
Arrow Keys or WASD - move
Z - undo
R - restart
X - start game from menu OR switch character
ESC - menu

Source Code:
https://www.puzzlescript.net/editor.html?hack=398b8d5a55ef514c843f59dee6024caf