That part was Xavier told Sanny to unleash the true Rage form after that Sanny did it and the point went to that were he can't control it there is were he was right now, and Xavier was frightened that Sanny's powers were so huge and scary as well. Sanny's power which was Rage where out at last and people in the exam room they were frightened especially his friends which were Alex and kale they were shocked but they knew this form after fight against Kong that was when Sanny's powers were activated and his Mana was just full Rage that even Kong could not beat him up. it means that this form is called Rage mode and it is a mode where his eyes turned Red, his strength is immense, his speed is high or immense too. kalifa didn't give up on him so she went on to go and stop Sanny's power that it was immense.
"let go Xavier", said Kalifa.
"me!", said Xavier.
"yeah what do you think come on let's go", said Kalifa.
"cool let's do it", said Xavier.
So they went on doing it and they went, meanwhile Alex was just shocked again that Sanny's power went over controlled that know she can feel that this is a different sanny that they are fight with.
"no stop!", said Alex.
but kalifa could not hear her, but then inside Sanny's mind there was sanny in a deep thoughts were he was, but he couldn't hear anybody and then he woke up found himself inside his mind there is where he sees himself that he was angry and his eyes were Red.
"hey who are you", said Sanny.
"am you sanny", said the Rage sanny.
sanny was shocked but not that shocked.
"so you not shocked I will just keep on controlling this body.
And then sanny calmed himself down that even from outside his mind his power went back to normal and everything went to it self that even kalifa and Xavier were exhausted from that fight against him.
"hmph, that's nothing to me but sanny found way, that's good", said Blaze.
"finally sanny I was worried sick of you, sanny", said Kalifa.
"yeah am sorry about that", said Sanny.
"oh Sanny are you okay", said Alex.
"yes, yes... am okay", said Sanny.
And the exam was over after that because the time that lose control it was left only 5 minutes and those five minutes were over, so Sanny's group, blaze's group and Xavier's group they passed the exam.
Sanny was happy even Kale and Alex were happy too, blaze just satisfied that he and his group passed too. Xavier and his group were happy too that they passed. kalifa was just happy to see that sanny was happy and well too.
NEXT TIME ON SANNY TENOM