A simple 2D platform game called 'Ball' or 'Bounce'??

[Harrison]

Hmm... was it a platformer and puzzle game? And could the ball change state so it was water to flow through things, a cloud to blow over things etc...? Or it just stayed as a ball?

[peanutismint]

AFAICR it just remained a ball, but it would roll into curved walls (imagine a cross-section of a skater's half-pipe etc) and around obstacles.... When you rolled off the edge of the screen the screen would change and you'd appear on the next one (as opposed to a moving screen)

[Rainboyo]

I think I'm also looking for this game!

I also think it might have been Acorn rather than Amiga, and a demo rather than a full release... did you get anywhere in your search, peanutismint?