Here is a deep dive into the 2004 incarnation of the Flash, his chemistry with Batman, and why this version remains a fan favorite. A Different Kind of Speedster
The Flash, in "The Batman" series, is also known as Barry Allen, a crime scene investigator who gains superhuman speed after being struck by lightning during a freak accident involving chemicals. His introduction into the series added a new dynamic, bringing with him not just his super-speed but also his scientific background and his origin story. the batman 2004 flash
based on his hometown being Central City and his nemesis being Mirror Master The Batman (2004) Wiki | Fandom Justice League's Here is a deep dive into the 2004
: He can vibrate his molecules at high frequencies to pass through solid objects. his chemistry with Batman