Some of those moves are unrealistic, and wouldn't actually work in a real fight. But if you are looking for more acrobatic or gymnastic styles...
Capoeira
Taekwondo
Some Kung Fu styles, notably Monkey Fist.
I think XMA is pretty much what you are thinking of. Also try youtubing capoeira, wushu, and tae kwon do. Those are the closest to movie fu without actually being in a movie and doing stunts with movie fu.
Martial arts should be learnt for self defence and/or spiritual reasons. If you wish to have fun I suggest learning advanced gymnastics. Once you know gymnastics you could apply any fighting moves to it for entertainment. Gymnastics will show you how to use your body. You don't need done hybrid fighting style, it's all choreography.
There is one martial art style that uses what your implying but it's a serious art form for dedicated competition fighters. I'm pretty sure it's not open for anyone not learning to compete.
No. Reason being, it would be totally impractical.
That aside, an average gymnast is actually very strong...most people would discredit them for (usually) being on the small side, but those guys have pretty impressive physical strength.
Hey,
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It's the best and simples self defence program I found on the internet.
Best
Capoeira seems to be what you are looking for.
Does anyone know if theres any sport or activity or something that teaches like defensive gymnastic? like something that combines gymnastics and karate, or kung fu, or any fighting? something like how "scarlett johansen"( or her stunt double i guess) does in iron man and the avengers, like fighting with the flexibleness and flips. I'd appreciate any feedback. And no im not trying to be black widow or a "superhero" , it just seems fun to learn.