Love the concept. I must admit that it took me a minute to figure out how to close the loops, and sometimes it didn’t work when I expected it to. My understanding is that the loop closing AoE only works when recalling the boomerang, but even then there were times that I thought it would trigger and it didn’t. When it did, though, very satisfying!
Really loved the juice (sound and score multiplier shake) on the rethrow!
Enemy variety was also interesting. It got real tricky when there were a ton of knife throwing enemies around.
I encountered what I believe was a bug where an enemy hit me and then was stuck to me. Did 3 hearts of damage before I could shake him free.
Overall great job!