The green Sheik represents Yuffie Kisaragi, a female ninja with a green color scheme.
The stage's background features the Mechonis, representing the Da-chao Statue, a monolithic mountain sculpture overlooking Yuffie's homeland, Wutai in Final Fantasy VII.
The Beastball, Black Hole, Pitfall, Soccer Ball, and X Bomb items represent the Materia, multicolored spherical items in Final Fantasy VII which feature a variety of abilities,
The battle conditions reference Yuffie's role as a Thief in Final Fantasy VII who is often stealing Materia from different characters.
Other trivia:
This spirit's Support type references how Yuffie can join the party as an optional member in Final Fantasy VII.
This spirit's Grab type and Item Gravitation ability further reference Yuffie's occupation as a Materia thief.
