Bang Bang Water-Kun

Bang Bang Water-Kun is one of Lala's inventions. that only appears in anime.

It is a weapon for shooting water with superior power, as the discharged water from this device falls targets in a faint.

This invention looks to have purple gunpoint, light-green tank with Deviluke's symbol at the center of its front, grey trigger with a grey girdle surrounding the tank for fixation, and yellow joints which connect those mentioned parts.

This invention is characteristic to be very large in size as Rito replies Lala.

Plot
In the episode 16 of the first anime, it is used by Lala for shooting water to Rito at the beginning of the episode, Rito obviously gets annoyed and says that the invention is too large.

Subsequently, Lala shoots it for helping Run whom is apparently harassed by the mob that appear coincidentally in the episode.

Lala attacks them with the discharged water of her invention, and all the mob get fainted by this attack.