So up until that part, this is what the combo looks like in the T8: “212 -> j2 -> 212 -> f32 -> b+Kameo”
When you do the f32 input, you do f3,b+kameo,2 all in quick succession.
Once you get that down, then comes one of the hardest parts of the combo, at least for me. And that’s connecting his fully charged b2. You have to press and hold b2 as SOON as you possibly can after doing the “f3,b+kameo,2” sequence. Which, you can’t just mash it out, you have to time it, which is how most combos work in this game I’ve noticed. You can very rarely mash something out and have it actually work, it certainly doesn’t work consistently.
Anyway, then after you get the charging b2 to actually land after doing it as fast as possible after that sequence, then you have to pop his Star Power quickly as you can after the b2 connects. The rest after that still isn’t “easy”. But what I did, and what I did for a lot of the harder combos is I’ll practice them in sections. So for Johnny’s, I’d practice the combo from doing a fully charged b2 and on. That way when I finally was able to land the fully charged b2, I would be ready to complete the combo.
This definitely isn’t an easy combo by any stretch, and I’d say it’s the 2nd hardest T8 combo.