B can do it

I'm having trouble completing this level even though I know two ways to solve it. It appears to be presented more as a demo, so I am not so motivated to get the actual checkmark and earn the right to rate it.

There are a couple of extra blocks that I would have preferred to have seen added to make it a bit easier of a demo. That and giving a bit more time to the player by setting the movable higher.

Spoiler: Two solutions

The two solutions are:
1. Based on the Push and Glide exploit first shown by @cpw on 30 Sep here; and
2. Based on the Boogie Bot Bug exploit first shown by @Weders on 5 Jun here.

The extra blocks that I would suggest be added are an extension of the grass as far as the win block in order to force B down the water path and one more beyond the win block to stop the movable such that B could step off.

Great find to have done so on your own!