In reading the other forums I see that the designer's intent is that you can't move down. Does that mean you can never step down to a lower block, even if the end result of the move has you going to a block equal to or higher in height than where you started? Or is it okay to 'temporarily' move down to get to a higher height?
I tend to agree that the current release's rulebook is somewhat confusing.
The rulebook is very remiss in not stating this.