Ryu can tank fists from a man that can destroy one island with a fist. That's storyline/gameplay segregation. Even Tekkenverse has it: gameplay-wise Tekken chars are not too different from real world athletes, but looking at intro, endings, etc, we can see that Heiachi can block a bullet with his teeth, 4 example.
In Street Fighter (and even moreso in Darkstalkers) char are far more powerful storyline-wise than gameplay wise.
However Heihachi seems resistant like a cockroach (that old man simply don't want to die), so is fair to state that Ryu can KO Heiachi without too much trouble, but he may not able to kill him (even 'cause Ryu doesn't fight to kill people).
__________________ If you are not merciless, your soul will be slaughtered!
Heihachi can catch bullets in his mouth and in the upcoming crossover all characters are in same weight class of fighters like I have always maintained.
The island fist punch is greatly exaggerated and hasn't been definitively proven to be canon.
I'd say Heihachi wins. Meaner, bullet catcher, his fists break Ryu's jaw.
"Not definitelvely proven as canon"? Wut? No, seriously, wut?
The fact that Street Fighters plot in A2 was propelled forward by this event, culminating in Ryu losing 2 matches because he questioned his conviction purely based on said event.
Why would you say the less obvious of the two outcomes? Normal Ryu has to avoid what Heihachi catches with his teeth. Durability and experience shits on Ryu as well.
Ryu loses cuz Heihachi is an experienced fighter and he's as tough as the diamond. (the explosion he tanked in tekken 5 is the equivalent of the nuclear bomb cuz jack bloodline is made of plutonium).
Ryu can put up a good fight but in the end, he'd get pwned....
That's if your idea of a good fight is seeing Ryu's skull shatter against Heihachi's upon impact, or getting Broken-Toy'd off a cliff he wouldn't survive against.
You always ask "proof" for things that are proved to be canon in SF, and almost everyone with knowledge of a bit of SFverse know that those things happened.
So, since you don't know almost nothing of SF canon powers, how can you truly judge Street Fighters' warriors abilities?
__________________ If you are not merciless, your soul will be slaughtered!
I said normal Ryu. Normal Ryu was bleeding from a couple of street bums with alcohol bottles wasn't he? Is this the Alpha movie Capcom said was an accurate portrayal of the characters? Heihachi didn't bleed from a blast that would have vaporized normal Ryu.