This is being discussed in the Roy/Ryu thread, and someone mentioned the general FGC might find it of note. Of course, I don't expect someone who doesn't like Smash to suddenly like it because of this. However, this is an interesting development for a series that has historically stuck to its streamlined control scheme of attacking with A or B plus a direction. I'm interested to hear what others think of this!
To be clear: You can still perform Ryu's moves with Smash-style inputs. For example, tapping B can unleash a hadoken (the SF wiki spells it without a "u," so that's how I'll spell it for now). Tapping Up + B can perform a shoryuken. And so on. But if you perform the original inputs for Ryu's moves, you'll get a boost in performance. For example, a QCF hadoken is 25% stronger. Also: Ryu in Smash differentiates between tapping a button and holding a button, for weak and strong variants of attacks, with three levels of power.
From the in-game tips (which appear on loading screens, or in the tips area):
Hadoken
A projectile from a world-class fighting game. Hold down the button to vary how fast it travels. It’ll disappear after a set distance.
Hadoken
Input the commands from the original series to increase the Hadoken’s power. Use it in midair to make Ryu glide slightly.
Hadoken
Quickly input down, down-forward, forward for 1.25x power. You might have to practice a bit to really figure out howtodo a Hadoken.
Hadoken
Input back, down-back, down, down-forward, forward to unleash a fiery Shakunetsu Hadoken that can deal multiple hits.
Shoryuken
When you enter the original commands, Ryu is momentarily invincible, the move is stronger and looks different…and his shout even changes!
Shoryuken
Input the commands from the original series to become invincible until the move is complete. The move needs no recovery time after landing.
Shoryuken
Input forward, down, down-forward for 1.2x attack power. Think you can pull it off? SURE YOU CAN!
Tatsumaki Senpukyaku
Ryu will float up slightly when using this move after a jump, making this spinning side kick great for recovering.
Tatsumaki Senpukyaku
Input the commands from the original series to power up the attack. One thing to remember: you can’t use it repeatedly in midair.
Tatsumaki Senpukyaku
Enter down, down-back, back for 1.16x power. Increasing the strength also increases the move’s speed and travel distance.
Focus Attack
Ryu will hold his stance until you release the button or a certain amount of time has passed. Then he’ll unleash the punch.
Focus Attack
By turning the opposite way the moment Ryu punches, he will strike in that direction instead.
Focus Attack
Hitting an opponent with the fully charged version of this move will make them slowly crumple. Time for a follow-up attack!
Focus Attack
You can cancel this move by pressing left or right twice quickly, either while charging or right after the punch connects.
Focus Attack
Ryu can take one hit while readying for this move. This is true until right before he attacks, even when charging the move to maximum power.
Side Smash Attack
Ryu steps forward and unleashes his Joudan Sokutogeri. The tip of his foot is the strongest part, but it won’t hit a small crouching enemy.
Strong Down Attack (Strong)
You might have seen this kick in the original games. Just like in those, you can cancel the move after striking by going straight into a special.
Strong Down Attack (Strong)
Hold down the attack button while crouching to use this move. You can cancel it into a special even if the foe is shielding, but only if you hit.
Strong Down Attack (Weak)
Use this attack by crouching and tapping the attack button. If you hit a downed opponent with it, you’ll knock them back to their feet.
Strong Side Attack (Strong)
Keep up the pressure on a guarding enemy with Ryu’s Collarbone Breaker, a double hit that’s good for shield breaking.
Up Air Attack
This uppercut hits the enemy twice and has a deceptively large range. It’s fairly easy to hit enemies directly over you.
Front Air Attack
Hitting an enemy with Ryu’s foot has higher launch power, while his upper leg is perfect for shield breaking. It’s a good move for combos.
Down Air Attack
This is the only attack in Ryu’s arsenal that has a meteor effect. If it hits, your victim will fly diagonally downward.
Upward Throw
This move kicks a grabbed opponent straight upward. As Ryu brings his leg back down, he’ll hit anyone else unlucky enough to be in the way.