Turns out I can just use the double buffer for this as long as I only copy the view window part to the screen as I shift it along and don’t need any other part of the screen to update. I don’t!

Ah yeah now you mention it! I haven’t played that but I think there are Silent Hill puzzles like this

That looks like the immortal snail don’t let it touch you

Does that make it the disassembled version?

yes, loggers