When Kojima reread Shibumi in 2006 as part of his research for Metal…

As a fan of Shibumi, Kojima opened Satori, the prequel written by Don Winslow, with unease. The first two pages —a maple leaf and the recollection of killing a father-figure— dispelled his doubts; he described the prose as so visual that an opera-house assassination scene played in his mind with image and sound, like a storyboard ready to be filmed.

“The boss is kind of mysterious. She's maternal, but she's also like the father figure.”

Kojima attributed Jennie as a subconscious inspiration for The Boss in Metal Gear Solid 3. He framed the opposition of Snake as a stray dog and The Boss as a mother cat in terms of his intention to introduce motherhood and the point of view of stray cats into a saga he had until then regarded as a story of parricide led by war dogs.

“I thought it was very faithful to the Metal Gear concept. I enjoyed it.”

“I've done a lot of boss battles in a lot of games, and one thing I try to accomplish is make something no one has ever seen before. From that perspective, two bosses I'm a fan of are Psycho Mantis from Metal Gear Solid and The Sorrow from Metal Gear Solid 3.”