How does Tsunade attain her super-strength?
Shooting chakra just at the time of making contact?
No. That doesn't sound right. Just doing that wouldn't result in such power.
As Sakura was fighting Kakashi for the bells using her chakra claws and Wolverine blades, she started moulding more chakra and freed her left hand from the chakra moves she was employing.
Then, the entire chakra she just moulded, in an instant, went through her arms and...
"Shannaro!"
It reached her fist and got released just at the right time.
Kakashi managed to chop her arm downwards, avoiding the attack hitting him. It only hit the ground.
The ground shattered into several blocks under the force of her Super-punch.
'This destruction... just like Tsunade-sama!'
Kakashi was surprised again by Sakura.
'AHH! Sakura-chan is scary!'
Naruto, who at some point has gotten caught in an obvious trap and was hanging from a tree, was scared. Thinking about what would happen if he pissed her.
'...When did she get this strong!'
Sasuke was feeling that he was falling behind.
And Sakura?
"AAAAAAAAHHHHHHHH!"
She was screaming in pain, tears rolling out of her eyes as she was grabbing her broken arm.
The move itself turned out to be perfect on the first try. But, the recoil broke her arm. Her body itself isn't strong enough yet.
Kakashi made a Shadow Clone to look after her, and went to find Sasuke. Time was running out.
"That's why you don't try new jutsus without supervision."
Kakashi used healing jutsu and First Aid, applying bandages over the now healed arm.
And by the time he was done, his real body has defeated Sasuke as well.
*Ringggg*
The alarm clock rang, signifying the end of the test.
Sakura sighed.
Even with all the things she did, she still couldn't get a bell. And her arm was still hurting. Kakashi-sensei didn't fix the bone wrong way, did he?
Everyone gathered around the pole, on which Naruto was tied to.
Their stomachs growled.
"Oh. You guys look really hungry."
Kakashi nonchalantly said, "There is no need for you to go back to the academy."
Sasuke smirked. Sakura sighed. Naruto excitedly shouted, "Then! Then all three of us—"
"Yup. All three of you should quit as Ninjas."
"Quit as Ninjas!? What does that mean!? Ok, we didn't get the bells! But, why do we have to quit!?"
"Because all of you are just punks who don't deserve to be ninjas."
"Tch!"
Sasuke got angry at the remark and ran towards Kakashi to attack him. But Kakashi easily subdued Sasuke and put his foot on Sasuke's head.
"That's why you are a punk."
He said to Sasuke. And then looked at all three.
"Are you underestimating ninjas? Hmm? Why do you think you were divided into teams of three and doing this test?"
Sakura answered, "Teamwork. You used only two bells to distract us from cooperating."
"That's right. Then Sakura, if you already figured out the answer, why didn't you attempt to co-operate with your teammates?"
"Umm, because they wouldn't have listened."
Sakura had thought about it, obviously. But knowing how stubborn Naruto and Sasuke are, one wanting to prove himself capable and the other thinking that he is capable, it wouldn't have worked.
"So you gave up even before trying?"
"..."
"So Sakura decided all on her own about how Sasuke and Naruto would act. Naruto tried to do what should have been the work of three, and even tried to get the lunch before the test was over. And Sasuke had already decided that he will be better off solo and the rest will just get in his way."
"You are a team! Learn to act as one bla bla bla..."
Kakashi continued his lecture. On and on and on!
And then, he said, "I will give you guys one more chance. But, after lunch, I will make it even tougher to get the bells. Those who still wish to challenge can eat lunch.
But don't give any to Naruto."
"Huh!?"
"It's punishment for trying to eat by yourself. If anyone gives him food, they will fail immediately. I am the rules here. Got it?"
Kakashi left. Sakura and Sasuke still shared food, and they passed.
"A ninja must see underneath the underneath. Those who break rules are scum, but those who abandon their conerades are worse than scum."
And just like that, the bell test was over, and team 7 is officially on the roll.