Thanks - glad you like it.  You can end a run early by using the pause button, then exit from there.  I'll make that more intuitive - I know The Tower has an "End run" button so I'll probably do something like that.

I'll save the settings in the next build so the music / soundfx settings get loaded.

I'm having the same issue. I also have a boss that's outside my attack range but it's a low level one and my repair outheals it so whatever. 

edit: the unlock did fix it, I just got there before the unlock. the wave start cash upgrade may be too powerful

an unlock, sorta fixes this?

Thanks for the feedback.  The 2nd planet in the new release has a Belt Speed upgrade now!  This gets fixed.  Also quotas are much lower