World one hundred and twenty-three is with six boxes, which the player have to move in another room.
Step by step solution
Go DOWN, RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, UP, UP, LEFT, LEFT, LEFT and push DOWN. Go UP, RIGHT, RIGHT, RIGHT, DOWN, DOWN, LEFT, LEFT, push LEFT, LEFT, LEFT and LEFT. Go UP, UP, RIGHT and push DOWN. Push RIGHT, go LEFT, LEFT, DOWN, push RIGHT, go UP, RIGHT, push DOWN, DOWN, DOWN and DOWN.
Go UP, UP, UP, UP, LEFT, LEFT, UP, LEFT, LEFT, DOWN, DOWN, push RIGHT, RIGHT, RIGHT, go UP, RIGHT, push DOWN, DOWN, DOWN, go LEFT, DOWN and push RIGHT. Go LEFT, DOWN, DOWN, RIGHT, RIGHT, UP, push LEFT, go DOWN, LEFT, push UP and UP. Go RIGHT, UP, UP, UP, LEFT, LEFT, LEFT, LEFT, UP, push RIGHT, RIGHT, go UP, RIGHT and push DOWN. Go LEFT, DOWN, push RIGHT, go UP, RIGHT, push DOWN, DOWN, DOWN, DOWN, go LEFT, DOWN, DOWN, RIGHT, RIGHT, UP and push LEFT.
Go UP, UP, UP, UP, RIGHT, RIGHT, RIGHT, RIGHT, UP, UP, LEFT, LEFT, LEFT and push DOWN. Go UP, RIGHT, RIGHT and push DOWN. Push LEFT, go DOWN and pushLEFT. Go RIGHT, UP, UP, LEFT and push DOWN. Go LEFT, push DOWN, DOWN, DOWN, DOWN, DOWN, go RIGHT, DOWN and push LEFT.
Go UP, UP, UP, UP, UP, UP, RIGHT, RIGHT, DOWN and push LEFT. Go UP, LEFT, push DOWN, DOWN, DOWN, go RIGHT and push DOWN.
Push LEFT, go UP, UP, UP, RIGHT, RIGHT, UP, RIGHT, RIGHT, DOWN, push LEFT, LEFT and LEFT. Go UP, LEFT, push DOWN, DOWN, DOWN and DOWN.
Congratulations. You have completed world one hundred and twenty-three. Get ready for world one hundred and twenty-four.