The game's "Softness Engine," as it's called, is used to render skin and breast physics in a fighting game series known for its abnormally busty, scantily-clad characters. It's also remarkable in that it allows players to adjust the jiggling.

"What is important to remember is that Dead or Alive is a series developed in Japan, where the interpretation of beauty is very different to that of Europe or the US," he said. "Our philosophy is to try and make a game that our fans can enjoy, both in the East and the West, and regardless of gender."

I was talking to Tecmo Koei's public relation representatives in the US before Hayashi's comments came to light. When I said I wanted to write about the Softness Engine, they were responsive. After I specified that I wanted to write about breast physics, they stopped returning my emails.