S4: Ep.43 Unknown to Jay, Ram has already had the City kids play a virtual game where he was the arch-enemy of the people. All he knows now is that Ram is letting him go. And unknown to Jay, Ram will then announce a rerun of the game in the real City. Before leaving, Jay allows Java to remove his Zapper. But then as he leaves the Hotel, one of the Techno guards feels he needs one.
The Goof here is the 3 stripes on either side of his face. He has them inside the Hotel, and they're gone by the time he steps outside.