YOU SAID:

wanna shoot a gun that goes bang bang

INTO JAPANESE

バンバン出る銃を撃ちたい

BACK INTO ENGLISH

I want to shoot a gun that goes bang.

INTO JAPANESE

ガンガン音を立てる銃を撃ちたい。

BACK INTO ENGLISH

I want to shoot a gun that makes a loud noise.

INTO JAPANESE

大きな音の出る銃を撃ちたい。

BACK INTO ENGLISH

I want to shoot a gun that makes a loud noise.