I'm genuinely touched! That's such a sweet thing to say.
The skeleton sync mechanic was almost dropped as playtesters found it confusing/frustrating. The original version had a few more tricky skeletons thrown in there. I however, thought Rattle Battle was a good idea. It's caught so many people, and they've gotten stuck, but the game here is teaching you how to ring around the rosey big slimes.
Hearing someone praise Rattle Battle feels great.