World seventy-nine is small but very hard stage with only five boxes.
Step by step solution
Go LEFT, UP, push LEFT, go UP, UP, LEFT, LEFT, DOWN, DOWN, push RIGHT, go DOWN and push DOWN. Go UP, UP, LEFT, UP, UP, RIGHT, RIGHT, DOWN, push RIGHT, go DOWN, DOWN, RIGHT, RIGHT, UP, RIGHT, UP, UP, LEFT and push DOWN.
Push LEFT, LEFT, go DOWN, DOWN, RIGHT, RIGHT and push UP. Go RIGHT, UP, push LEFT, go DOWN, DOWN, push DOWN, DOWN, go RIGHT, RIGHT, DOWN, DOWN, LEFT, LEFT, push UP and UP.
Go LEFT, LEFT, LEFT, DOWN, LEFT, LEFT, UP and push RIGHT. Go UP, UP, UP, push RIGHT, go LEFT, LEFT, UP, UP, RIGHT, RIGHT and push DOWN. Go RIGHT, push DOWN, go UP, LEFT, UP, LEFT, LEFT, DOWN, DOWN, RIGHT and push RIGHT.
Go LEFT, DOWN, DOWN, DOWN, push RIGHT, RIGHT, RIGHT, RIGHT, go DOWN, DOWN, RIGHT, RIGHT, UP, UP, push LEFT and LEFT.
Push UP, UP, UP, go RIGHT, UP, UP, LEFT and push DOWN. Push LEFT, LEFT, go RIGHT, RIGHT, push DOWN, DOWN, DOWN, DOWN, go RIGHT, RIGHT, DOWN, DOWN, LEFT, LEFT, push UP, UP and UP.
Go DOWN, push LEFT, LEFT, LEFT, go DOWN, LEFT, LEFT, UP, push RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, go DOWN, DOWN, RIGHT, RIGHT, UP, UP, push LEFT, go RIGHT, DOWN, DOWN, LEFT, LEFT, UP and push UP.
Go LEFT, LEFT, LEFT, LEFT, UP, UP, UP, LEFT, UP, UP, RIGHT, RIGHT and push DOWN.
Congratulations. You have completed world seventy-nine. Get ready for world eighty.