this red ball game ports red ball 3 and the red ball 4 flash volumes. this port has physics similar to the red ball 3 and red ball 4 flash volumes (although you cant pause jump in the red ball 3 port sadly) and you can do the boss roll in there (some of the textures in the port change some color like the boxes from red ball 4 flash volumes). is this even allowed to be in the leaderboards of red ball 4 volumes or is it not? Here's the link: https://apps.apple.com/us/app/b-redball/id1185802000

If you have a high enough speed after the first double jump in 2, you can do a single jump to get to the checkpoint and after that go to the edge of the platform and double jump to complete the level. If you want to see what the strat looks like, heres the video link: