Other mistake: The suspect James Wong in international localizations of the game (Italian and Spanish that I could personally check) has two discordant dates of birth on the same official FBI file; one is 10/04/1948, the one and only in the English version, the second inside the body of the notes is 11/01/1950.
Character mistake: When the level 4 boss makes its entrance, the game warns you with "DANGEROUS! PAY ATTENTION TO BACKWARD!" When you are about to win, it encourages you with "YOU SMASHED HIS ALL EQUIPMENT!"