Change-O-Matic

Took me 3 tries to finish this level, idk why but I almost get it at my second attempt except that B got paralyzed or what, he can't move! Anyways, fun level and also

... I love the falling part at the start of the game! That's cool! Great work.

For the changing colour, I highly suspect that,cause the fall of R is on another location where as B falls one block left to that. However not letting that as the only aspect of the game was very thoughtful.

No... Magic, magic...

Spoiler

Er... YES

I was going to ask for a hint to keep the win up as it always fell until one time it stuck?

I uploaded a video. It's a easy level, but you have to notice that the little arrow is in the exact place to put B.

Spoiler

Notice that when you push the winning brick up it's mandatory waiting a while. If not, the red dotted brick falls down again.

Applicable but a bit hard