On a related note, I don't think I can improve the driver much further without proper waitstate support in the core. That's mnemodemo 1, part 2 in MESS (with some wip changes):
![[Linked Image from home.arcor.de]](http://home.arcor.de/startaq/mnemotech1_p2.png)
And heres the demo in SimCoupe:
![[Linked Image from home.arcor.de]](http://home.arcor.de/startaq/mnemotech1_p2sc.png)
The big yellow letters are mid-screen palette changes, the bottom border is also changed mid-screen to create those pillars.