>>715298768
Gold
Gladius or Parodius

>>714490232
>Goemon
Urushi is a reference to Ganbare Goemon.
>Silent Hill
It's not yet clear whether Prune is from Silent Hill or not. There's not much connection to it apart from an old event.
>Gradius
The girl who had the concept of Gradius was canceled in the beta (pic). She could probably still appear since Hiiro also had its concept canceled but was reused.
> Lethal Enforcers
Not from bombergirl, she appears in Mahjong Fight Girls

Poopoo and Futa appeared to me in a dream and said that Gold was going to be the new Bombergirl.