Back to the Future The Game Help?

In Back to The Future The Game Episode 4: Double visions, I am having trouble. I am up to the bit where you have to make a bad mind map to show Edna that Emmett is not that great. the hints tell me that I should use the stew, the bacteria tank, the algae biscuits and the jacob's ladder to create a bad mind map. The only problem is, I can not find the freakin' Jacob's ladder. It's really pissing me off. I know the game was only recently released, but if anybody could help, please do.