Can I propose a new challenge ?
I propose the development of an MSX1 game with smooth scroll
I think that in scr1 it is possible to use up to 6 different tilesets that
should be sufficient for a 8 direction smooth scroll
(two X position, two Y positions plus 2 extra diagonal positions lead exactly to 6 tilesets!)
........
......X.
........
X...X...
........
..X.....
........
X...X...
I marked with X the offset of the tiles in the 6 tilesets.
Adding some inertia to the scroll you do not need the
missing positions.