EX Blue Mary (EXブルー・マリー) is a different shade to Blue Mary, who's a secret character available in Real Bout Fatal Fury Special. Her default look was later carried over for Mary's normal attire in Real Bout Garou Densetsu Special Dominated Mind.
Tired of failing her missions and sick of being nice, this version of Mary is a sadist. She wants to dominate over her opponents and revel in "owning" them. She is determined to make Terry her "pet" in her ending. While he protests, a willing Joe volunteers for the part. She retorts that he already is one.
- Hidden Weapon: EX Mary will attack her opponents with a handheld stun gun.
- Ignore weight: EX Mary can throw her opponents around regardless of their weight.
In Real Bout Special, she fights using Mary's moveset from Fatal Fury 3: Road to the Final Victory.