@Mystic Monkey Late reply, but I am pretty sure they meant that the Badniks would have a temporary green paint job for the day.
Also, this is like the same guy who mass-produces killer robots on a daily basis (even if we know the Pawn Series is cheaper to produce, they are still combat robots too) so I wouldn’t be surprised if Eggman just built a machine that paints over the Badniks.