Sonic the Hedgehog 4: Episode II Review - IGN

The physics are fixed, but the magic's still missing.
The physics are fixed, but the magic's still missing.

Sonic the Hedgehog 4: Episode I - IGN

Sonic the Hedgehog 4: Episode I - IGN

Sonic Prime Season 2 Review

Sonic the Hedgehog 4: Episode II - IGN

Sonic the Hedgehog 4: Episode I - IGN

Sonic the Hedgehog 2 (film), Sonic Wiki Zone

Sonic the Hedgehog 4: Episode II [Videos] - IGN

List of Sonic the Hedgehog characters - Wikipedia

Sonic Superstars - Wikipedia

Sonic the Hedgehog 4: Episode I - Video Review

Take a peek at Archie's Sonic 4 Episode 2 comic adaptation » SEGAbits - #1 Source for SEGA News

Sonic the Hedgehog 4: Episode I - IGN

IGN's Terrible Sonic Reviews

Sonic the Hedgehog 2: The Movie - IGN