Yeah agreed, I've been thinking about this and realise I might have been making things way more complicated than they need to be - each mission having an icon and the icon of which mission to hit shown on the ritual - when it really could just be the icon of the ritual shown over any active mission. I'll try it out and see how it feels.
I'll have a think about multiball, although I'm not against the idea of being able to trigger it repeatedly and have absolute carnage on the go, especially if you make a build tailored towards doing exactly that. Some players find it a negative, given that the bottom blockers tend to take a pounding when it's active, yet with a bit of skill yeah it can snowball into basically an instant win by triggering all the other rituals much easier. It's a tough one to balance, I'll play around a bit but if you have any ideas I'm always open to suggestions!
Also, huge thanks for the feedback and for playing!