Timed Stupidity Bomb (Stupidity Time Bomb) (じげんバカだん) is a gadget owned by Doraemon. The bomb has a timer that must be activated before it can detonate. If anything was caught in its area of effect, the bomb stupefies its targets, causing them to hallucinate and behave erratically. It affects both humans and machines, while the effect lasts for up to 5 minutes.