Ekaru
Smash Apprentice
Yes, but he doesn't start the side B til right before the peak of the double jump the first time, so by using simple math... Yeah, it's possible to ISJR it. Don't see much of a use there, but meh.this doesnt necessarily prove the ness ISJ is possible
if you pay close attention to the time where he gets it, his first 2nd jump is higher than where he ends for his starting on the ISJ, so if every bit of arial time was needed from the first 2nd jump you wouldnt be able to repeat it endlessly
Dubz: as stated, the incorrect way's just a jump buffer. Not nearly as useful since you have the landing animation, than the jumping animation, which you can do already. Not having the clouds, aka no landing lag nor initial jumping lag, is the main point of this tech, so... :D It takes practice, we can tell that already. =P It'll probably be months to a year before someone takes the time to master this with a character, AKA chain moves into a ISJR. That would be...insane. and insanely useful, now that I think about it.