Coolest clusters and systems

Howdy folks!

Now that we have ways to share public clusters and systems with the world at large, we want to publicize the coolest of the cool by posting about them and by recording ourselves playing the trickier ones ( :sweat_smile: ).

Do y’all have any favorites so far? (other folks’ or your own!)

Edit: the post I replied to has been removed.

I think they’re looking for puzzle-based clusters, not timing-based clusters. “Spend 5-10 minutes getting timing exactly right” is not as big a draw as “solve cool puzzles”.

I would like to nominate this cluster by @Calabo. It has a good difficulty level without relying on murderously hard timing (something I’m definitely guilty of), and I think it makes excellent use of the game mechanics.