Ty the Tasmanian Tiger 2: Bush Rescue

Following from where the previous game left off, the Tasmanian tiger Ty defeats his Cassowary nemesis Boss Cass using his father's Doomerang given to him by his reformed brother Sly, destroying Cass's mech and retrieving the last missing talisman. After Ty returns the talisman to Rainbow Cliffs, his parents who were trapped in the alternate realm of "The Dream Time" during an earlier battle with Boss Cass return to the real world. Ty embraces his parents and Rainbow Cliffs is saved. Boss Cass is detained by police.
Later, Cass's henchmen lead an attack on the town of Currawong. Ty, his girlfriend Shazza the Dingo, Ranger Ken the Tasmanian Devil, and Duke the Kiwi arrive to assist Maurie the Cockatoo, Sly, and the local police in containing the situation. With Sly and Shazza, Ty fights his way into the city and halts advancing dropships and mechs using his own Battle Bunyip power suit. Cass's thorny devil henchwoman Fluffy arrives in her own Bunyip mech and makes her way towards Currawong Jail. Ty and Shazza realize that the attack on Currawong was a diversion so that Cass's henchmen could break him out of prison. Ty catches up with Fluffy and overpowers her. Ken and Duke arrive by helicopter to Ty's aid, but are subsequently shot down by Fluffy. Ty breaks off the fight to rescue his friends in the crashing helicopter, giving Fluffy the time to successfully break Boss Cass out of prison. After taunting Ty's efforts, Cass and Fluffy escape.
Two months later, Ty and his friends preside over a special inaugural ceremony, where Dennis the green tree frog announces the formation of "Bush Rescue", a peacekeeping organization based in Burramudgee dedicated to the protection of Southern Rivers. Ty and Shazza are then informed by Dennis that Boss Cass has founded his own country called "Cassopolis", and now possesses diplomatic immunity as a result of his leader status. Later on, while trying to stop a fire on the Wuli Wuli Oil Rig, Fluffy forces Ty to fight Buster (a giant robotic monster formed from hundreds of yellow nanobots joined). During the battle, Fluffy manages to steal an interface device known as a Shadow Drive from the rig and delivers it to Boss Cass, who uses the drive to create a genetically-modified bioweapon.
During his rematch against Fluffy on her coastal fortress, Ty steals a data module known as a Data N.U.T., which upon analysis shows Cass's evil plan to capture the people of Buramudgee and use them for the mass production of the bioweapon. Cass's minions attack Bush Rescue; while Ty is distracted during the battle, Cass manages to kidnap most of Burramudgee's mammal population. Ty, Sly, Shazza, and Duke fly to Cass's lair to stop him, with Shazza commandeering a standard Battle Bunyip, Sly using his custom-made Missile Bunyip, and Ty using the newly-constructed Shadow Bunyip. After eliminating most of Cass's henchmen, Sly and Shazza go to free the residents of Burramudgee while Ty goes to defeat Boss Cass. Just before he leaves, Ty kisses Shazza and says he will be alright.
Ty jumps down into a hole and encounters Cass in the heart of the island's volcano. He then summons a large number of green nanobots which join to form a long-armed robot (known as Armstrong in the GBA game). Ty destroys Armstrong and defeats Boss Cass. When they return to Buramudgee, Ty, Sly, and Shazza receive medals for their bravery from Dennis and Bush Rescue, while Boss Cass is sent back to prison to carry out lunch duty for all of his imprisoned henchmen. If the player achieves 100% completion, the bunyip elder Nandu Gili appears before Ty and Shazza through astral projection, and requests that the two teleport with him to The Dream Time for them to see something. When Ty passes through the portal, he is immediately spotted by three unknown creatures.
The story of the Game Boy Advance version remains mostly the same, with certain sequences such as the opening battle with Fluffy being altered. A boss fight against a malfunctioning Cy the Cybernetic Tiger which was teased during the previous game's post-credits scene is also added, although it bears little relevance to the overall plot.