The artwork used for EVA's spirit is slightly altered from her original appearance.The artwork used to represent Gray Fox is not actually him, but Raiden in the Gray Fox DLC costume from Metal Gear Rising: Revengeance.This spirit is purchasable at Sheldon's Place, a shop that sells spirits related to weapons, referencing how Metal Gear ZEKE is a military weapon.starting off with a Super Scope references Metal Gear ZEKE's rail gun. The stage references the Mother Base in the Caribbean where Metal Gear ZEKE was constructed.The enemy starts the battle with a Super Scope.This spirit's Trade-Off Ability ↑ ability further references Miller's loss of his limbs and eventual position as the commander of the Mother Base in The Phantom Pain.This spirit's Support type references how "Miller" supported Snake via Codec in Metal Gear Solid until it was revealed it was Liquid Snake impersonating Miller.The Attack Power ↑ rule references how Miller lost his arm and leg while he was captured, but later becomes the commander of the Mother Base in The Phantom Pain.The timed battle condition references the three day limit the Big Boss has to rescue a captured Miller in Metal Gear Solid V: The Phantom Pain.The music references how Liquid Snake impersonated Miller in Metal Gear Solid.The stage references how Midgar and Miller's home base, Mother Base are both large areas supported by structures.The Snake minions represents Venom Snake, Solid Snake and Liquid Snake, the body double/clones of Big Boss who worked with/trained under Miller.Ken and Kazuhira Miller are both blonde Western characters.The enemy has increased attack power when the enemy's at high damage.In World of Light, The Boss's spirit is located across a bridge in the Kongo Jungle section, further referencing The Boss's defection scene on the bridge.This spirit's Grab and Throw ability references The Boss' defection scene in where she throws Naked Snake over a bridge and into the river.The timed stamina battle condition references how the player must defeat the Boss within the ten minute time limit.The Defense ↑ rule references how the Boss uses her white suit to camouflage herself amongst the white lilies.The music references how "Snake Eater" starts playing during The Boss' battle after 5 minutes.The stage references Rokovoj Bereg, the flowery field location of The Boss' battle.Zero Suit Samus and The Boss are both blonde female fighters who took on a maternal role in their respective game appearances.The enemy has increased defense when the enemy's at high damage.