You can modify your character using Peroxide codes to claim free Product Essence, which you can exchange to buy rerolls at Kisuke’s and use them to change your character’s name, appearance ...

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 ...

As of right now, you can’t redeem Project Smash codes because there is no code redemption system in the game. However, it doesn’t mean that the developer won’t implement one in the near future.

Summon the greatest anime fighters and level up to unlock all slots before you enter the infinite mode. If you want to own the best units, use Anime Defenders codes to obtain Gems.