MRC

Find the autopilot line!
2 balls are used to block the lane.

Spoiler: How to win

Spoiler

I use the lift to the next floor. Then how to use autopilot? If B steps out, the lift goes down in stages but not where you can step on the top. Then it won't work unless B is inside on the ground floor.

@Chris Hester Let's see if anyone can solve this or not. If not, I'll make a video of it.

Super cool design!!! The architecture is very regular, I like absolutely all the details of the elegant design architecture. SUPER! But the gameplay is really incomprehensible to me.

@Denis Nazin As usual, I forced the gameplay into the design.
@Chris Hester The video has been made, you can see it in the first comment.

@Labyrenight Thank you very much for the video. I think it's very cool, but very difficult and very long. For such complex autopilots, unfortunately, poor visibility. I didn't notice the stairs behind the elevator at all. I understand that good design is very important at this level. The design is really SUPER!!! But, in my opinion, poor visibility for such a complex gameplay. Sorry, my subjective opinion. The design is really great, one of the best. But the gameplay is very long for me.

@Labyrenight Wow, that was TOO tricky although the trick used is maybe the most known,in my opinion, the gameplay (where you must tap) was very obscure & not intuitive... enjoyed seeing the solution movie & honestly I am a bit sad but not frustated cause I think that, even I am an experienced player, I would NEVER completed the level by myself

Interesting to see the video. I only managed two stars and had problems with the elevator that i moved too slowly that tended to upset the autopilot so i gave up. The finish was not what i was anticipating.