Practice new Jutsu's

Entering the Uzumaki privates training ground from your mother and tsunade's memories you think on what new jutsus you want to test.

Birth no jutsu (creates new summons, clones, animals and insects or just have children.)

Wood style

Medical jutsu

Chakra chains

absorption

Transformation jutsus (nurse, stripper, amazon, naga, maid, waitress, queen, princess, swimsuit, lifeguard, teacher, student, schoolgirl, cop, anbu, doctor, catgirl, succubus, harpy, furry, doggirl, salamander, centaur, horse girl, witch, frog girl, spider girl, insect girl, wonder woman, super girl, Archriae, bee girl, ant girl, cow girl, robot girl, alien, demon, fox girl, angel, plant girl, squid girl, chicken girl, thief and cavegirl etc)

Enhancement jutsu (bigger lips, big ass, breast's, clit, vagina, asshole, hips, thighs and muscle's)

Futanari no Jutsu (grow dick and maybe ball)