Yes, just as you said! :) The first boss requires a bit of extra logic, and I originally wanted all of them to fully revolve around the spin theme. Unfortunately, I felt time slipping away, and at one point, I almost gave up out of frustration. But in the end, I pushed through and finished it—though at the cost of making the later bosses follow a more general behavior pattern (both in attacks and movement).
I originally planned for 25 bosses, then cut it down to 20, then 10, because I realized that within the two weeks I had, I wouldn't be able to fully refine all of them in detail. And as you pointed out, I integrated the spin mechanic in a way that you basically have to keep rotating around them to defeat them. I’m really glad you noticed and highlighted that!
Oh, and I think you're the only one so far who pointed out how fast the player respawns after dying. That was intentional. I thought a lot about what should happen when the player dies, and in the end, I decided: "BOSS RUSH JAM" - it has to be dynamic. So I made it flow quickly, without causing a frustrating sense of loss or unnecessary interruptions in the gameplay.
Thanks for playing, and I’m glad you liked it! Have a great day! :)