Originally posted by Wei Phoenix
They'd have to know what Kryptonite is first. I don't think Shenron is Omniscient and would know of things like that honestly. I suppose if say Luthor brought him K-Nite and showed it to him and asked for something involving it then he should be able to.That being said, Goku just having Kryptonite or even Kryptonite fists doesn't guarantee him a win. Holding a stick of Knite doesn't instantly drain him.
Or if they were given basic knowledge of Kryptonite?
Of course not. Though it'd still give Goku/DBU character an 'advantage' they otherwise wouldn't have against regular Superman.
Not that Kryptonite would work on Superman 1 Million.