What about the Yo-yo Glitch?
I have been out for long, came back, and haven't seen thru last pages nothing about ness.
Yo-yo glitch to my understanding on PSA knowledge can be created, not that I'm 100% sure how to re-create it, but, lucario hitting ness charging upsmash with an aura sphere makes yo-yo stay out, so, adding bit variables or RA-Basic could make the Yo-yo glitch live again
just throwing this out, not a ness user, but I know someone in puerto rico that amazed me once with the use of the Yo-yo glitch