Thanks for the thorough feedback :)
Yes, I'd consider the web build to be rather broken. We should probably remove it. You definitely have a much better experience with the desktop builds.
The timing is position based as far as I know, a typical quick and dirty jam solution :)
> notes aren't quantized to the music
That's weird, since we actually do that (I think). Maybe this is another thing which is broken in the web export?
Making the rhythm more complex when placing more of the same type of tower was actually planned, but we need to cut it due to time constraints. We also planned a B-Side loop when you play really well.
> you're busing looking at the bottom and hitting the notes
Yeah, I've noticed that as well. You focus at the bottom of the screen and often completely miss what's going on above.
Overall, there are many small things that I think we could fix to glue both game aspects better together and improve the general UX, but we barely made this whole thing work in time, so I'm happy it's actually playable :)