Ratatouille is based on the Pixar film of the same name. The version by Asobo Studio is, like other versions, a 3D platform game, but has its own design, levels and missions.
The game follows the plot of the film only loosely, but has the main voice cast from the movie reprising their roles. The player controls Ratatouille , a rat with a refined sense of taste. When Ratatouille finds himself in Paris near the restaurant of the famous deceased chef Gusteau, he works on making his dream of becoming a chef himself come true, while helping out his fellow rats to procure food.
The gameplay is centered around platforming and exploration, with Remy able to jump, double-jump, swing along poles, balance on ropes, crawl on certain walls and defend himself with tail swipes or by using spoons as weapons. He can also engage his keen sense of smell, which displays the path to the next goal or objective. The game features smaller levels and mostly linear progress, but still allows for some freedom of movement.
There are optional bonus missions, taking the form of dream sequences, in which Remy navigates landscapes made of foodstuffs. All levels include many collectibles, such as up to 100 stars to collect, as well as special items like batteries or lightbulbs. Collecting all of a certain kind of item in an area awards bonus points, which can be spent in Gusteau's shop to unlock bonuses.
Ratatouille was released for the PlayStation 2 on June 1st, 2007.