Batman: Vengeance

Batman saves a woman named Mary Flynn from a bomb placed by the Joker at Gotham Chemicals, and learns that the villain is holding her son hostage for ransom. Using a transmitter, he tracks down the Joker and Mary to a partially demolished Gotham Bridge, where Mary is unmasked as Harley Quinn and the kidnapping scheme is revealed to be part of the Joker's plot to lure Batman into a trap. The Dark Knight and the Joker proceed to fight, but the latter falls off the bridge to his apparent death. Suspicious that the Joker survived, Batman lets Harley go, who is unaware that he still has the transmitter allowing him to monitor her activities.

While Batman and Batgirl keep tabs on Harley in the hopes of discovering the Joker's true plot, they are alerted to Mr. Freeze's attack on scientist Isaac Evers at Gotham Industrial Research, who developed a drug called Promethium to treat cryogenically frozen people like Freeze and his wife Nora. Freeze had prievously tried the drug to no avail, and was infuriated when he recently received a promotional video for it; believing Evers had sent it to taunt him, he set out to kill the scientist. While pursuing Freeze, Batman uncovers Evers's shady dealings with the Joker, who funded his research after his initial funding was cut because of Promethium's high flammability, implying that the Joker had plans with the drug. Shortly Batman saves Evers and defeats Freeze, he must come to Batgirl's aid, who stumbled upon a deal between Mayor Hamilton Hill and one of Poison Ivy's minions at the train station while following Harley's transmitter.

Batman boards the train and saves Batgirl, but Ivy's minion escapes, unwittingly leaving behind a clue regarding Ivy's plot. Batman and Batgirl track Ivy down to Gotham Chemicals, where the former finds Mayor Hill, who reveals that Ivy, using a chemical she received from unknown sources, created mutant plants to put inside him and other wealthy socialites, so that she could blackmail them in exchange for an antidote that prevents the plants from eating them. However, the chemical is very rare, so Ivy had the Gotham Chemicals building rebuilt in order to mass-produce it. After defeating Ivy, Batman retrieves the antidote and gives it to Mayor Hill to use on himself and Ivy's other victims.

After spotting some the Joker's goons hijacking a blimp, Batman goes to speak with a seemingly reformed Harley, who informs him that, since the Joker's death, some his men have been operating on their own, and recently left with his explosive "toys" and the blueprints to the Gotham Gasworks. After Batman foils their plan to send the toys into the city's pipe network by flooding it, he finds a tied up Issac Evers, who reveals that he hired the Joker's goons to destroy Gotham Industrial for the insurance money, having been unable to collect on the damage left by Mr. Freeze without revealing his involvement with the Joker; however, the goons eventually turned on him and tied him up so that they could carry out their own plan to destroy Gotham City. As Batman hands Evers over to the police, Commissioner Gordon is hit with a Batarang. Blamed for the attack, Batman barely escapes from the police, and concludes that Harley is behind everything that occurred since Joker’s 'death'. After disguising himself as a drifter to avoid police attention, he investigates the Joker's old hideout and finds evidence hinting at his survival.

After tracking the stolen blimp down to the Gasworks, Batman confronts a still-living Joker, who confirms his suspicions that he had faked his death to exact his true plan in a silent fashion, and that everyone unknowingly contributed to it: Evers supplied the Joker with Promethium, which he used to make his Joker toxin highly flammable; Mr. Freeze's attack on Evers, provoked by the tape he received from the Joker, led the scientist to plan the Gasworks scheme; Poison Ivy, who also received the chemical from the Joker, rebuilt Gotham Chemicals, allowing him to mass-produce Joker toxin; Harely led him to Freeze, Ivy, and Evers's schemes so that he could stop them before they went too far, and framed him for attacking Gordon; and Batman himself flooded Gotham's pipe network, which will allow the Joker to spread his toxin from the blimp throughout the city, burning it down. As the Joker escapes, Batman defeats his goons and Harley and pursues him, ultimately foiling his plan by stopping the flow of Promethium and Joker toxin in the pipe network. The Joker then attempts to crash the blimp and manually detonate the Promethium, but Batman defeats him and destroys the blimp mid-air.

As the villains are locked up at Arkham Asylum, Batman meets with Gordon, who informs that the police have discovered he was framed and thanks him for saving Gotham yet again. The Dark Knight then retreats to look out over the city, when the Bat-Signal ignites behind him.

Vengeance took environmental and character designs from The New Batman Adventures, and starred most of the main voice cast from both it and its predecessor, Batman: The Animated Series. The voice cast includes Kevin Conroy as Batman, Mark Hamill as the Joker, Tara Strong as Batgirl, Diane Pershing as Poison Ivy, Michael Ansara as Mr. Freeze, Efrem Zimbalist, Jr. as Alfred Pennyworth, Arleen Sorkin as Harley Quinn, Bob Hastings as Commissioner Gordon, and Lloyd Bochner as Mayor Hill.

By the end of 2001, sales of Batman: Vengeance had surpassed 540,000 units.[45] Its sales surpassed 670,000 copies by the end of March 2002.[46]

Batman Vengeance received average reviews from critics and fans alike. The game's praise mainly went towards the voice acting, story, and cinematic cutscenes. There was criticism for the first person mode, which limited player's abilities in-game. The PC version drew a lot of mixed or negative reviews due to complex and sometimes confusing controls.

Jeff Lundrigan reviewed the PlayStation 2 version of the game for Next Generation, rating it three stars out of five, and stated that "While it has a number of things going for it, Batman Vengeance still comes up short in a few key areas."[39]

The Academy of Interactive Arts & Sciences nominated Batman: Vengeance for its 2001 "Outstanding Achievement in Original Musical Composition" award,[47] which ultimately went to Tropico.[48]

• Batman: Gotham City Racer
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• Batman: Vengeance at MobyGames
• Batman: Vengeance at MobyGames (Game Boy Advance)