Sally.EXE is a duelist in Mixels-Yu-Gi-Oh and had lost to Flain & Tails in Flain & Tails VS Sally.EXE (Yu-Gi-Oh DUEL). She is known to Sonic.EXE in the duel. She was mentioned by Sonic.EXE that she was "better than Flain", even though she lost in a duel with Flain & Tails.
Yu-Gi-Oh Duel Opponents/Outcomes
Unknown, so far.