Leisure Suit Larry 5: Passionate Patti Does a Little Undercover Work is the fourth entry in the Leisure Suit Larry series of graphical adventure games published by Sierra On-Line.
It is the first title in the series to have 256-color graphics and a fully icon-based interface. Being an (in)direct sequel to Leisure Suit Larry 3, its title is misleading, as there is no Leisure Suit Larry 4. It was re-released in 2017 on Steam with Windows support.
The absence of a "Leisure Suit Larry 4" forms the basis of this newest installment, as Julius Biggs has stolen the 'missing floppies' of the game and caused Larry Laffer to become amnesiac. Larry is now in the adult film industry, working for a Mafia-connected company known as PornProdCorp. His boss sends him across the United States to scout for models to appear in "America's Sexiest Home Videos".
Meanwhile, Patti is recruited by the FBI to dig up incriminating evidence on two record companies which are suspected of hiding subliminal messages in their songs. At the same time, PornProdCorp schemes to eliminate the competition in their industry by donating money to CANE (Conservatives Against Nearly Everything).
On his way back to Los Angeles, California, Larry is involved in an airplane incident, landing the plane safely and being greeted as a hero. He is invited to the White House by George H. W. Bush, where he is reunited with Patti, and Biggs's sinister role is revealed.
Leisure Suit Larry 5 expands on the multi-character feature of the previous installment, with control periodically passing between Larry and Patti. A difference in the interface is that it includes the "Zipper" icon, enabling the character to perform an erotic action.
The overall difficulty is greatly reduced in comparison with past games; neither character can become trapped or die, and losing the game is impossible. Many of the items players collect on their journey are merely optional, only triggering alternative solutions and affecting the final score, but not the game's progress.