BIG rescue HARD

Perhaps, besides getting the stars, you can let other robots pass the level on their own?

I recognise the similarities with the earlier levels in the series but this one seems too easy with much of the level not being used. I never moved B.

Now I'm not sure if I did the right thing by reading @ridgerunner 's comment because encouraged by that comment I also found an easy solution without involving B... thank you for sharing @韩国庆