As many players start out the game out of fun and go with the random name, later on they start liking the game and wish they started it with a different name but are stuck with what they got now, i thought it would be a nice idea to have some kind of Nickname Change Pass in Donut Shop as an offer like Additional Working Robot. Here are some ideas for this pass:
-Can be purchased once per account and cannot be gifted to others.
-Costs $9.99 - $19.99
-1-time usage
-Upon purchase, you get a message in your Hero Zero mailbox to activate Nickname Change Pass. After clicking on Activate button on bottom of the message, you will get a pop up screen with 3 fields, New Username, Confirm new username and Password to confirm it's you.