Artoon

Artoon was the company that made Yoshi Topsy-Turvy and Yoshi's Island DS. Artoon was a subsidiary of AQ Interactive. The company was absorbed into its parent in 2010, before they merged with Marvelous Entertainment and Liveware to form Marvelous AQL.

Trivia

 * The name probably originates from the word "cartoon", but without the letter "c".