World one hundred and fifty-two is tiny, but with hard to see how to solve type of puzzle.
Step by step solution
Go UP, LEFT, UP, UP, UP, LEFT, push UP and UP. Go LEFT, UP, push RIGHT, go DOWN, RIGHT, RIGHT, UP, UP, LEFT and push DOWN. Go LEFT, DOWN, DOWN, DOWN, RIGHT, push RIGHT, RIGHT, go UP, RIGHT, push DOWN, go LEFT, DOWN, DOWN, RIGHT, RIGHT, UP and push LEFT.
Go DOWN, LEFT, push UP, go RIGHT, UP, push LEFT, LEFT, LEFT, go DOWN, LEFT, push UP. Go DOWN, RIGHT, DOWN, DOWN, RIGHT, DOWN and push LEFT.
Go UP, LEFT, LEFT, DOWN, DOWN, RIGHT and push UP. Go LEFT, UP, push RIGHT, go DOWN, RIGHT, push UP, UP and UP.
Go LEFT, push LEFT and LEFT. Go DOWN, LEFT, push UP, go RIGHT, UP, UP, LEFT, LEFT, DOWN and push RIGHT. Go UP, RIGHT, push DOWN, go LEFT, DOWN, push RIGHT, RIGHT and RIGHT.
Go UP, push UP and UP. Go LEFT, UP, push RIGHT and RIGHT. Go UP, RIGHT, RIGHT, DOWN and push LEFT. Go DOWN, push LEFT, go RIGHT, UP, UP, LEFT and push DOWN. Go LEFT, push DOWN, DOWN and DOWN. Go UP, UP, UP, RIGHT, RIGHT, DOWN and push LEFT. Go UP, LEFT, push DOWN and DOWN.
Congratulations. You have completed world one hundred and fifty-two. Get ready for world one hundred and fifty-three.