Thanks!
Are you against flashing notifications altogether? I like to call attention to certain notifications. As for the seizure warning, that's why I say exit via the task manager but maybe some of the flashes are over the top. Should I just tone down the brightness? Quickness? Get rid of them altogether?
Was the floaty rotation note made during the rotation segment of the tutorial? I turn off the camera leading for that segment because it confuses people about which direction they're turning. Hopefully it felt a bit better after that.
As for hitting rings.. I'm torn. On one hand I want feedback to the player that they were that close (people often think they passed through a ring when they missed it altogether, hitting the ring at least tells you that you were close).
General control tightness: this is a tough one. I'm going to key in on more feedback in this area because I spent ages trying to find ideal angular and linear damping (something that felt like you had a lot of control, but also wasn't cheaply tight), and the chariot you start out with (Jewel Bean) is buffed on the angular damping significantly. I can actually increase its linear damping as well...
Sorry for the verbose reply, I'll have to check your game soon and return the favor!