Versus Missions, also known as VS Missions, first introduced in Gunvolt Chronicles: Luminous Avenger iX, are individual matches against every single boss in the game. they can be unlocked by completing the four-part "X" symbol at the top right corner of the title screen, which you do by:
- Finishing the main story
- Clear all special missions
- Collect all emblems
- Complete every single stage (including Special Missions) in "Score Attack".
Once unlocked, VS Missions can be played on other save files after clearing the Boss Rush.
- All Falcon bosses are the regular (non-EX) variant.
- Unlike in Boss Rush, Blade is the second fight (Medical Center) variant.
- Unlike in Boss Rush, Demerzel is the regular (Sumeragi Secret Bunker 3) variant.
- Although not a visible option, hold ZR/R2/RT before pressing engage will load EX version of bosses if an available variant is present.