There wasn't a way to change your name without editing save data, but it wasn't hard to add one, so if you apply this patch then you can change either name in the miscellaneous settings. https://mega.nz/file/1DASTSQb#JdB3jpKA30Ripu41rpyw3kARao90AhJjyJtalbBZB5I
And I'm a bit confused by what you are saying with the bunny suit. It appears in every yellow interaction point? As in the town locations portal? How does the bunny suit appear? Like an extra version is added to your inventory or something?