Sonic Underground is an LCD game created by Tiger Electronics in 2000. The game case was shaped like Sonic holding a guitar, an instrument he uses in the television show Sonic Underground.

Discover showtimes, read reviews, watch trailers, find streaming options, and see where to watch Sonic Underground: Secrets of the Chaos Emerald (2008). Explore cast details and learn more on ...

Sonic, Manic and Sonia are thrown into a universe that almost seems to parallel their own, however in this dimension, they are not the in the Underground, the Hedgehogs are the rulers of Mobius.