Delete the round object below-and-just-left-of the ball box. Wait 2-3 seconds and delete the rectangle below the ball box. The box should jump up and grab the sliding platform above it. After the ball hits orb 2, delete the round part of the platform. With the round bit on the right side of the ball box cradled in the V shape, delete the round object closest to the V, and when the V slides, delete the remaining round object so that the ball falls through it.