|This article is about a/an weapon in Sekai Ninja Sen Jiraiya.|
Jiraibuster (ジライバスター Jiraibasutā?) is Jiraiya's ray gun introduced in Episode 13, it appears to be a weapon handed down to the Yamaji family. It uses three different types of ammunition: a Medical Cartridge (メディカルカートリッジ Medikaru Kātorijji?) that shoots anesthetic rounds, a Signal Cartridge (通信カートリッジ Tsūshin Kātorijji?) that shoots signal rounds, and a Material Destruction Cartridge (器物破壊カートリッジ Kibutsu Hakai Kātorijji?) that can destroy rocks. The Jiraibuster is mainly used as a defensive weapon, since it is not capable of firing lethal shots.