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Wow! Very tricky but really cool. I really enjoyed it, thanks!

Really great tricky level. I think it's not entirely intuitive, and the ball didn't always roll correctly for me. But I liked the level.

I think the same as @Block builder .The ball is a little unstable specially in the curve.. but the level is very cool and fresh air! Nice little R-at Trap!

Wow!!! So tricky but so clever...excellent level!!! THANKS @yuan

Spoiler: Video: my solution

Very sneaky.

All of this deserve a clap... and five stars!
Intelligent work! Thanks.