Thank you for the feedback! I see many players get stuck on that level; so I added descriptions of all of the blocks on the project page! The game is pretty short, but I would love for you to play it in it's entirety (there's some new mechanics awaiting!)
If you want the solution to the level, you first need to wait, then you need to walk right to the lever. Then, simply use the lever to pass the level!
(that level is probably the most confusing one, sorry!)