World four hundred and six forms the letters B, X and S when completed.
Step by step solution
Go LEFT, LEFT, LEFT, LEFT, LEFT, LEFT, UP, UP and push UP. Push LEFT. Push DOWN, go RIGHT, DOWN and push LEFT. Go RIGHT, RIGHT, RIGHT, UP, push LEFT, LEFT and LEFT. Go RIGHT, RIGHT, RIGHT, UP and push LEFT. Go UP, push LEFT and LEFT. Go RIGHT, RIGHT, DOWN, push LEFT, go UP, LEFT, push DOWN and DOWN. Go RIGHT, DOWN, DOWN, LEFT, LEFT, LEFT, UP, UP, UP, UP, UP, RIGHT, UP, UP, RIGHT, RIGHT, DOWN and push LEFT. Push DOWN, go UP, RIGHT and push DOWN. Go UP, UP, RIGHT, RIGHT, DOWN, DOWN, push LEFT, LEFT and LEFT. Go RIGHT, UP, UP, RIGHT, push DOWN and DOWN.
Go RIGHT, push DOWN and DOWN. Go UP, UP, UP, UP, UP, RIGHT, RIGHT, DOWN, DOWN, DOWN, DOWN, DOWN and push LEFT. Go RIGHT, DOWN, DOWN, push LEFT, LEFT and LEFT. Go RIGHT, RIGHT, RIGHT, DOWN, RIGHT, RIGHT, UP, push LEFT, LEFT, LEFT and LEFT. Go RIGHT, RIGHT, UP, UP, UP, UP and push LEFT. Go RIGHT, UP and push LEFT. Go RIGHT, UP, push LEFT, LEFT, LEFT, LEFT and LEFT. Go RIGHT, RIGHT, RIGHT, RIGHT, DOWN, DOWN, RIGHT, DOWN, DOWN, LEFT, push UP, UP, UP, go RIGHT, UP, push LEFT, LEFT, LEFT and LEFT. Go RIGHT, RIGHT, RIGHT, DOWN, DOWN, DOWN, DOWN, RIGHT, DOWN, DOWN, LEFT, push UP, UP, UP, UP, UP, go RIGHT, UP, push LEFT, LEFT and LEFT.
Go RIGHT, RIGHT, RIGHT, UP, RIGHT, RIGHT, DOWN, push LEFT, LEFT, LEFT and LEFT. Go RIGHT, RIGHT, RIGHT and push DOWN. Go UP, RIGHT and push RIGHT. Push DOWN. Push LEFT, LEFT, go UP, LEFT, LEFT, DOWN, DOWN, RIGHT, DOWN, RIGHT, RIGHT, push UP, UP, go RIGHT, UP, push LEFT and LEFT. Go RIGHT, RIGHT, DOWN, RIGHT, DOWN and push DOWN. Push LEFT, go DOWN and push LEFT. Push DOWN. Push LEFT, go RIGHT and push RIGHT. Go LEFT, LEFT, DOWN, DOWN, RIGHT, RIGHT and push UP. Push LEFT and LEFT. Go RIGHT, UP, UP, RIGHT, push DOWN, go LEFT, DOWN and push RIGHT.
Go DOWN, RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, UP, UP, UP, RIGHT, UP and push LEFT. Push UP, go LEFT and push UP. Go DOWN, LEFT, LEFT, UP and push LEFT. Go UP and push RIGHT. Go DOWN, DOWN, RIGHT, RIGHT, UP and push LEFT. Go DOWN, DOWN and push DOWN. Push RIGHT, go LEFT, and push DOWN. Push RIGHT, go DOWN, DOWN, LEFT, LEFT, UP and push RIGHT. Go LEFT, LEFT, DOWN, LEFT, LEFT, UP, UP, UP, UP, RIGHT, UP, push RIGHT and RIGHT. Push DOWN, DOWN, DOWN, go LEFT, DOWN and push RIGHT. Go LEFT, UP and push UP. Push LEFT, go UP, push RIGHT, go UP, RIGHT, push DOWN and DOWN.
Congratulations. You have completed world four hundred and six. Get ready for world four hundred and seven.