Dead or Alive and its sequel game Dead or Alive 2 are created by Japanese company Tecmo. When the game is advertised, "beautiful women" are always mentioned. Even US Tecmo's official promotion line for Dead or Alive 2 is "Our Girls are Better than their Girls".
This reflects the unfortunate East Asian fantasy that they could pass for white with some color changes, a symptom of internalized racism. Other Japanese video games with the same sort of blonde/East Asian character modes are Bloody Roar and Soul Calibur.
Now we wonder what kind of target audience that feature was created for. The male characters do not have any bouncing body parts. Another Japanese video game with breast bounce is Rival Schools.
I am not aware of any such option for the male characters. The female characters are often already scantily clad even without the bikini option. This is a clear case of objectification of women, unfortunately the norm in popular video games.
It is not inconceivable that children playing these games will internalize the sexism and racism inherent in these images.