Just finished it, 8/8. I mostly approached it by winging it and shuffling things around that looked good and like it was approaching the goal, since there's plenty of time to finish.

I still don't quite understand the exact mirroring rules at play.

You are joking right?

That one was interesting - I found it a lot of work to plan in advance but trivial to complete because at every point there was only one sensible course of action. After a couple of rounds I didn't bother planning and just lined things up as I went.

The most difficult thing about this was controls being unresponsive (at least on firefox).

solved first try with 577 actions, not trying hard to optimize for low action count.

I did the first round literally in 5 secs. How can you not 'get it'? lol