WASD or arrow keys to move, Z or X to undo a move. "Cooperation" is a single new level making use of Xian's original Sokoban game, in particular making use of the ability to have three player characters. The level is not all that difficult, but you must take care with how you manipulate the three workers in order to finish successfully! All workers signed an agreement indemnifying their employer.
Sokoban v1.0.1 game by @CursedSokoban aka @FamousMasterXian No code was meaningfully modified. This is all Xian's work. I just created this level to make use of the game's ability to spawn multiple player sprites. Thanks to @FamousMasterXian for the game! :D