It’s slightly complex to actually make use of codes in Flex UGC Codes. They do grant you free items redeemed, but there’s a catch: it only does so if you’ve purchased a specific UGC item ...

The threat of Majin Buu has passed, and Goku and friends are all living in peace. Then there appears Beerus, the God of Destruction. The story finally moves beyond the universe, into a new phase!