This is more of a funny reply than an actual solution…
The Marquee tag still works… "marquee" | Can I use... Support tables for HTML5, CSS3, etc 
Ha ha ha… it's deprecated / obsolete, but has amazing browser support.
So… uh… is this what you're trying to do… https://photics.com/games/cabling/
I have words scrolling across, but I suppose I could use images if I really wanted to do that. Basically, it's just an element that is told to move with Hype's Get/Set API…
hypeDocument.setElementProperty(e, 'left', -500, td, 'linear');
…where "e" is the element, and "td" is the ticker duration.
There was a performance issue, where it would eat a lot of CPU power. I thought I'd have to redo that part, as I'm planning on updating the game, but I just checked it now and it seemed OK. I don't know why it got better. Maybe it's my computer, maybe Hype changed, or maybe Safari got better? 
Also, maybe the Camera thingie is an alternative… Hype Dynamic Camera