Going up

Reposted with new image to show evidence of accomplishability.

:
Some people call it bug. I call it feature.

Spoiler: 【Answer】

It can be pushed down. Of course it can be pushed up too.

It's a bug that we have all made into a feature. Easy when you know how.

... Or maybe "exploit"?

Too easy!!!

@IvanPnha.. Its purpose is to educate - by illustrating a specific undocumented feature

Thanks to comment it is based on a "feature".

My first experience with raising B up a block using this method. Now I see it everywhere and I'm very glad I know what to do.

Tries, my rating is bc you are so helpful but how do I get the tutorials to play. I am a very new beginner. Thanks!