Two red bots

I found a shortcut because the free draggable

Spoiler

I am very intrigued for the mechanisms involved to make the R walk again. Perhaps some movements with the free cube... But it's too easy to put this free cube in top of red dot.
Perhaps you can change the border of the structure to avoid the cube going out.

Using the free draggable, B won and the draggable won. BTW, no need to release the red bots!

Spoiler: Shortcuts

1. B falls off draggable and draggable pushes B onto or near the win.
2. Use the draggable and go to the win.

I have made a new version for this hope to remove the shortcut.(Two red bots 2.0)
http://mekoramaforum.com/media/two-red-bots-2-0.8757/