This isn't the (or even a) solution to this puzzle? Jpeg attached. The crate is on the lone target. Nothing is still moving. No cork, once again. This has been a wonderfully challenging set of intriguing puzzles. And I thank you sincerely for them. But [SPOILER ALERT] when I finished what I thought was the last puzzle, I got smacked with this doozy. My triumph at finishing all 21 puzzles after two weeks of intense struggle was yanked instantly away. Then I hit "Next" and with no warning I find I can't get back, except to solve puzzle 21 again. You're a splendid puzzle designer and I don't want to discourage you with criticism, but this is not a good way to end your game.
-That's not a solution to the puzzle. What about the green target?
-Your triumph at beating the 21 levels shouldn't disappear, it is a huge achievement.
-I wanted to do a special extra secret level in the game (in general secret content is a good thing), but puzzlescript has its limitations, it was a risk not being able to select it from the Selection menu because it meant having to solve 21 again in order to retry this level. Mmm, to me its worth the risk, but maybe not for everyone. If you want to access that level directly, contact me at my email in my twitter bio.
FWIW re-solving 21 feels like a bigger deal than it actually is. Partly because your memory of the level tends to be shaped by how long it took to find the solution rather than how long it takes to implement the solution, and also because 21 is pretty generous space-wise, so the solution's a bit more forgiving to memory lapses.
I was delighted to get another level. I haven't solved it yet, but I'm 99% sure what I need to do with the green target, and have gotten (probably deceptively) close to a solution. And if it's what I think it is, then it seems like the perfect conclusion to your little puzzling monument.