This is the level:

(yes that is a community remix tileset, maybe I'm trying to make a reasonable level for it, though I kinda just spoiled the 'surprise' )

This is what goes wrong:



I used the horizontal scroll stop sprite to limit scrolling left, but I couldn't get the vertical scroll stop sprite to work.

The background moves weirdly and if you go to the edge, you can see the ground shifts by a pixel.

Any ideas on how I can properly stop the camera and background moving when zoomed in like this?