Sonic Universe

Sonic Universe is an ongoing comic book series published by Archie Comics since February of 2009, and is a spinoff of the long running comic book Sonic the Hedgehog.

Whereas Sonic the Hedgehog centers around the title character, Sonic Universe is meant to focus on other characters within the continuity with or without Sonic's involvement.

Both comics had a crossover with Mega Man in the storyline Worlds Collide from April to August of 2013.

Worlds Collide issues

 * Sonic Universe Issue 51 (Part 2)
 * Sonic Universe Issue 52 (Part 5)
 * Sonic Universe Issue 53 (Part 8)
 * Sonic Universe Issue 54 (Part 11)

Related issues

 * Sonic Universe Issue 50
 * Takes place before Sonic the Hedgehog #247 & Mega Man #23. The main story "Forged in Fire" ends with Dr. Eggman ordering Metal Sonic to report to the Interdimensional Gateway to meet his new partner, who's described as a base villain like himself. None of the story was used in the 2013 FCBD flipbook.
 * Sonic Universe Issue 55
 * Sonic Universe Issue 56
 * Sonic Universe Issue 57
 * Part of a 4 issue storyline titled "Pirate Plunder Panic". Blaze the Cat makes a brief reference to her capture by Dr. Eggman and Dr. Wily. The Wily Egg ended up in the Sol Zone. It's found by Captain Metal, who remodeled it into the Egg O'War.