He blinked. How did this kid-- he's not going to ask. He grinned and nodded:"Yes. I learned how to make basic one AND I made several stages of it."

He poured out more of the chakra, making rasengan twice its original size. "This is oodama rasengan. It requires lots of chakra. And other one I know is too dangerous to make in the village with people." He grinned and with rasengan he made, he hit the tree he chose, slicing it up in few seconds.