Johnny Test (2005)

S4E14 Johnny's Big Dumb Sisters

Just before their crucial scholarship interview, the twins unveil their newest creation, which inadvertently leaves them feeling clueless, all thanks to Johnny's meddling. As they scramble to regain their smarts, chaos ensues, putting their chances for the scholarship in jeopardy. With time running out, the twins must figure out a way to reverse the effects and ace their interview, relying on their resourcefulness and teamwork to save the day. Will they manage to outsmart the mishap and secure their future?