Why Japan’s Deadliest WWII Bomber Exploded After One Bullet | Mitsubishi G4M “Betty” In World War II, Japan fielded one of the most feared long-range bombers ever built—the Mitsubishi G4M “Betty.” It could fly farther than any Allied bomber, sink battleships, and strike targets thought to be completely safe. But when American forces finally captured an intact Betty bomber in 1945, they discovered a shocking truth that changed air combat forever. This video tells the full story of the G4M Betty—f