Dream: World Protector

In this game, players need to use up and down buttons to control the movement of two ropes separately. These two ropes are located on both sides of the screen, and their main task is to move a ball. This ball needs to move forward in a triangular area full of caves, and players need to carefully avoid all the caves and safely bring the ball to the triangular edge in order.

Specific operations:
Control rope: Adjust the length of the rope by pressing the corresponding up and down keys. The left rope is controlled by the left button, and the right rope is controlled by the right button.

Avoid caves: In the triangular area, there are caves of various sizes. Players need to flexibly adjust the length of the rope to allow the ball to travel between the caves.

Victory condition: In the end, the player needs to successfully bring the ball to three vertices in order to win.