I guess I couldn’t pin the inspiration for the character on any one thing. But when we are making new characters, we are always looking for some new element to add to the character to make it interesting and fun, and while we were making Bridget, that was the element.
Source, in full
2 August 2015 interview on AnimeDiet with Jeremy Booth at Anime Expo 2015 (edited for clarity and concision by Dan Campisi) in response to Jeremy asking "In Guilty Gear, there is a character called Bridget. Bridget is considered one of the first transgender character in games. What was the process of creating Bridget, and what inspired you to make the character transgender?"