Thanks for the feedback!
> add some indicators of how accurately the player clicks.
Will definitely do, I mentioned in another reply that it was a bit jank and I thought it would be frustrating.
> I would suggest adding an option to offset the timing
Would you clarify? I'm currently imagining changing the song time relative to the bubble time, but that would make it (more) out of sync and that's counterintuitive.
> I also seem to be able to click circles that aren't the current one
Same here, would you clarify? When I test it myself, I'm focusing on the next bubble that's going to flash. Another tester clicked the bubbles as soon as they started inflating, is that what you're referring to?