These advertisements take the form of posters, all of which appear in the city-themed levels of the games they are in. These posters show various Chao species as well as characters that have connections to them, such as Tikal the Echidna and Chaos. The movies appear to star Chao in their main roles and are credited as "Sonic Team films". On the Chao in Space: The Search for Tikal billboard in Sonic Generations, there are some typos with the names of the characters credited below.
- If one looks closely on the "Chao in Space 2: Perfect Chaos Strikes Back" (Which is a play on Star Wars: The Empire Strikes Back), Emerl and Marine the Raccoon's names can be seen.
- The poster in Sonic Generations misspells various character names, which include:
- The name of Chao in Space: The Search for Tikal is likely a reference to the sci-fi movie Star Trek III: The Search for Spock.