Sonic Team is a Japanese computer and video game developer established in Ōta, Tokyo, Japan in 1990, originally known as Sega AM8. The Japan-based division is also known as G.E. Department Global Entertainment. The studio has collaborated with several in-house Japanese studios as well as other American-based studios such as STI and Visual Concepts. Sonic Team are best known for the Sonic the Hedgehog series. The American division was discontinued in 2008.