Sent in a map of Balloon Trip. As far as I can tell, the first two or three screens, the ones with sparks that are stationary and don't move, are always the same. After that point, when the sparks are moving, all the balloons and sparks are laid down at random.
It's not uncommon to see the same pattern come up again when you reset the game though. As Jon said, I think the game is randomly choosing "parts of screens" while generating the map. I'm not exactly sure how this works but a 4096 pixel map should give a pretty good impression of what this mode looks like.
Also, this would take days without cheating, but if you get the max score and then overflow your points back to 0 your rank drops from 1 all the way back down to 47.