Translation guide
The English onomatopoeia 'bang-bang' is used for gunshots, explosions, and similar sharp sounds. In Japanese, different onomatopoeia are used depending on the context, such as gunfire, hitting, or explosions.
The sound of a gun being fired, often repeated.
A loud explosive sound, like a firework or a door slamming.
The sound of hitting something repeatedly, like a hammer or fists.
バンバン is the most versatile for sharp bangs (gunshots, hitting). パンパン is lighter and higher-pitched, often for toy guns or light slaps. ドンドン is a deeper, thudding sound for heavy knocking or stomping.