I’m a massive fan of your work, I still can’t believe that version of Galaga you did - amazing. Have you seen the NES version of Pacman Championship Edition? I’m convinced you could do that on a C64, check it out on YouTube.
Viewing post in Pacman C64 (Original Concept Map) comments
Yes, agreed, the scroll routine would have to be highly optimised. But there isn’t anything that says impossible. What a great challenge?! Honestly, I programmed “in the day” on a proper C64 on Zoom assembler so I’m a good judge of what’s capable and you could do that, okay might be very slightly slower but very doable.