Sonic Boom: Rise of Lyric - Wikipedia

Sonic the Hedgehog (lost complete build of Xbox 360/PlayStation 3 platformer; 2006) - The Lost Media Wiki

Sonic Team troubles after Generations - is a Mario & Sonic at the Olympic Games, mobile and Sonic Boom at fault? Sega

Sonic Boom: Fire & Ice, Sonic Wiki Zone

SEGA Financial Report: Alien: Isolation sells over 2 million while Yakuza Zero and Sonic Boom display weak sales » SEGAbits - #1 Source for SEGA News

Sonic Boom: Shattered Crystal - Wikipedia

Lyric the Last Ancient, Sonic Wiki Zone

Sonic Boom, Sonic the Hedgehog Movies Wiki

Sonic Forces, Sonic Wiki Zone

Shadow the Hedgehog (lost early build of platformer; 2005) - The Lost Media Wiki

Sonic the Movie 2 – Wikipedia