The 8-bit versions, including the PC version (which was technically 16-bit), lacked the two-player cooperative mode in any form, instead having an alternating two-player mode. The title screen of the Japanese version became different, while the English version's was unchanged. The Secret Service agent's quote at the intro screen to the NES version was phrased slightly differently as "The President has been kidnapped by ninjas. Are you a bad enough dude to rescue the President?", while the Famicom counterpart's quote was slightly similar to the international arcade and NES quotes. The reference to President Ronnie (an overt reference to former president of the United States Ronald Reagan) was removed because Nintendo of America did not allow political content in games. In that version, the President bears a resemblance to George H. W. Bush, who was the president of the United States when the NES version was released. The endings of the Japanese and English language versions of the NES port are based on the international arcade version; however, the Japanese version does not show the credits but only shows "The End" at the White House scene and lasts a shorter time than the English version. The 8-bit home computer versions lacked the intro from either the arcade or the NES versions. The "I'm bad!" speech was only present in the NES version; however, it does not sound identical to its arcade counterpart.