Walk scratchie across 3 screens
Scroll across 3 backgrounds TODO - extend to 5 backgrounds or 9 in a 3 x 3 grid - should do better - calculation in each sprite a chore - clone sprite and use different costume number for example details - consider in x coordinate units of half a page 240 each background draws itself when sent a broadcast - could loop instead. Scratchie walks to the left edge of one and right edge of 3, otherwise in the middle. Trick - if x and y does not match what you set - it should be off the page.
