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