The black Zero Suit Samus puppet fighter represents Nina Williams, a military woman with blonde hair who is depicted wearing a black skintight suit and specializes in physical combat.
The Mii Gunner minion fighters' Special Forces costumes represent the soldiers of the Tekken Force, a private army owned by the Mishima family and led by Nina in Tekken 7.
The stage is based on Shadow Moses Island from Metal Gear Solid, which is primarily centered around military themes, referencing Nina's occupation as leader of the Tekken Force in Tekken 7.
Other trivia:
This spirit's Air Attack ↑ ability increases the power of attacks used in the air, referencing the Running Jump Kick, a move used by Nina where she jumps and performs her kicks in midair.
