Sly Cooper and the Thievius Raccoonus is a stealth-platformer developed by Sucker Punch Productions and published by Sony Computer Entertainment. Released in 2002 for the PlayStation 2, the game follows Sly Cooper, a skilled raccoon thief, as he and his gang attempt to recover the Thievius Raccoonus, a book containing the secrets of his family's thieving legacy. The gameplay combines stealth, platforming, puzzle-solving, and light combat, and is noted for its cel-shaded visuals and humorous narrative.

This game is divided into five worlds, each themed around a particular part of the world and the villain headquartered there. Most worlds are structured as a central hub with entrances to numerous individual levels. Each of the levels has a primary goals which earns the player a key. You must collect all the keys in the world to fight the world's boss.

Many of the levels have a platformer structure. The objective of these worlds is to reach the location of the key. There are substantial stealth elements here as the player must dodge searchlights and trips lasers which set off alarms and avoid alerting guards. In addition to the main objective, there are clue bottles to find. Finding all the clues in a level allows you to open a safe with a page from the Thievius Raccoonus which grants a new ability of some sort. After getting this, there is also a master thief sprint where the player must get from the start of a level to the exit within a time limit.