It's worth noting that there are some Sonic titles, like Sonic 06, Sega Superstar Tennis, Sonic Free Riders, and Sonic and ... of fan-favorite characters Metal Sonic and Amy Rose.

In Sonic 3’s mid-credits stinger, an army of Metal Sonics show up to neutralize Sonic. But a savior arrives: Amy Rose, cloaked and armed with a giant mallet, and she lays waste to the robotic ...

Sonic the Hedgehog #75 by Evan Stanley and Min Ho Kim concludes the thrilling "Phantom Riders" arc ... such as in the "Metal Virus" arc, but it's never been acknowledged as openly as it is ...