Anti-Joyce
From Multiversal Omnipedia
The physical manifestation of all Joyce's repressed urges, Anti-Joyce was accidentally created by Ralph Zinobop's Dup-O-Matic during Squadron 128's encounter with him. The real Joyce was left behind on a desert island, as Anti-Joyce seamlessly took her place. Upon returning, she started to act out every repressed desire Joyce had, only interrupted when the real Joyce returned. Upon meeting her "naughty" side, Joyce went mad with hatred, and cold-bloodedly shot Anti-Joyce dead.
Although that was the end of Anti-Joyce, she still existed in a way within the real Joyce's psyche, until she finally came to terms with that part of herself.
