The "Kicker Skeleton" enemy wears a red scarf and attacks by leaping into the air with its arms outstretched, then delivering a flying kick. These two elements are a reference to the Japanese superhero, Kamen Rider, who is known for his flying-kick finishing move and his red scarf. If Soma acquires the Kicker Skeleton's soul, he will gain a flying-kick ability, and the enemy also has a chance to drop wearable "Red Scarf" and "Ancient Belt" items.

The Ancient Belt alludes to the many belts which give the Kamen Riders their powers. Its description explains that it "lends the wearer a positive attitude", a reference to Kamen Rider Kuuga, whose belt, The Arcle, was not only an artifact from an ancient civilization but who is also characterized by his unusually upbeat and optimistic personality. The "Ancient Belt" item's box-like design mirrors Kamen Rider Black's belt, the King Stone. Ironically, neither Kamen Rider Black nor Kamen Rider Kuuga wore scarves, unlike many of the early Riders.