Cancel Ammo Launcher-Kun

Cancel Ammo Launcher-Kun is one of Lala's inventions.

Feautures
This invention looks a green rocket launcher.

As the name implies, it is used for counteracting or reverting the effects of Lala's other inventions.

Appearance
The Cancel Ammo Launcher-Kun appear in the chapter 102 of To LOVE-Ru (adpated in OVA 1 of first anime) where its used for reverting the effect of Pai-Pai Rocket-Kun which turned Rito into a girl since the chapter 100.

In the chapter, Lala finds Rito (thanks to Kun Kun Trace-Kun) in Saki's residence after that the girl, Aya and Rin saved him from the Principal and, unaware of the girl's real identity, take care of him. While are all in the bathouse and Rito faint after an embarassed situation with Saki who is holding him, Lala comes and shoot Rito with the invention. Consenquently Rito is turned into a boy and regains consciousness. But naturally he has to run away from Saki, Rin, and Aya that chase him calling a pervert.

Trivia

 * This invention is very similar to Beto Beto Launcher-Kun and the unique difference is that the device includes red colour instead of green.