They needed someone to do their dirty work. Now, I'll let you be the next in line!
The Classic Ending (formerly known as the Normal Ending) is one of the four endings and the current three achievable endings in Pet Story.
When at Grannie's house the players must kill all the cockroaches roaming around the house. Once Grannie wakes up from all the noise. The players must pretend to be asleep and Grannie will close the door. The players must choose to go after Pigeon and crash into the dump truck. The exact story then proceeds to play out as normal in this ending and the Lab Ending. After escaping the dump, the players must decide to walk to the park instead of taking the bus.
The player must choose to go through the entrance instead into the vents in order to rescue Canela. Once inside they must sneak carefully in order to not wake the Animal Control guards up. (although only one is visible at the reception desk) Once snuck past the reception room, the player then sneaks past a hallways with many captured pets and then finally make it to the back room where they encounter Slicer and find Canela stranded in a cage above and next to an incinerator. Canela then calls the player for help shortly before Slicer says that its too late to rescue her, the players then are in shock stating that Slicer should already be dead once he arrived at the shelter. Fortunately for him, he reveals that Animal Control (or more specifically Dr. Flea) adopted him to be their guard dog. Slicer then stated of the player and everyone despising him and stated that the guards needed someone to do their dirty work, and then proceeded to engage a battle with the player. However, Slicer is shortly defeated and thrown into the incinerator and burns to death. After Slicer's defeat and demise, Canela then asks if the player can free her, but not long before two guards arrive at the scene ready to torture the player. Right on cue when they are approaching the player, Grannie arrives and says that she's been looking for her pets all over the city. The animal control guards then ask Grannie if the pets that they were about to torture their owner. Grannie confirms this and then proceeds to leave the shelter and call the police in the process.
The ending cuts back to Grannie's house where Grannie stands in front of a policeman, with the man thanking Grannie for capturing Animal Control as the organization was engaging in several crimes and plan to have them locked away for a long time and for good. Grannie then says that she is glad that everyone is safe and sound. Afterwards, Canela vows to never chase a pigeon again.
For a list of alternative paths, see the Lab Ending for if the players use the vents. Also see the Christmas Ending for if the players go to the Grocery Store instead of Grannie's House. Third, see the Sewer Ending if the players decide to ignore Pigeon. Finally, see the Zoo Ending and Aquarium Ending if the Players decide to take the bus.