BallPush Sensor

No tricks. FD level with a small route for B.

Spoiler: HINT for ball's pushing

Use a special ruler made of stone blocks. This is a hint! One of the divisions of the ruler is the exact hit of the ball on the target!

Spoiler: VS

Time - 1:44

Weird motor action well integrated in path building logic for B. Enjoyed it!

Who needs a landing pad. I placed the FD in a different place and cleaned every ball directly into the hole.

I like how

Spoiler

... just when you think you're done using the FD, you need to use it one last time.