Sonic Underground - Wikipedia

Sonic Adventure - Wikipedia

Sonic Underground, Japanese Anime Wiki

Sonic Prime, Sonic the Hedgehog Movies Wiki

Sonic Boom, Sonic the Hedgehog Movies Wiki

Software:Sonic the Hedgehog (8-bit video game) - HandWiki

Sonic Underground Sonic News Network+BreezeWiki

Sonic Underground - Alchetron, The Free Social Encyclopedia

Burning the Candle at Both Ends. Sonic Youth's Daydream Nation at 35, by R.W. Watkins, Rock Solid, Oct, 2023

Sonic Underground Sonic News Network+BreezeWiki

Software:Sonic Shuffle - HandWiki

Sonic X –

Doctor Robotnik (Sonic Underground), Sonic Wiki Zone