Doppelganger appears in 11 issues in this volume.
June 1, 1994
Night of 1000 Sonics
February 1, 1995
Evil Sonic Is Back
July 1, 1995
March 1, 1997
From Hero to Zero In No Time At All
August 1, 2005
Chaos Emeralds Are Forever
September 1, 2005
When Worlds Collide Finale: Best of the Best
Countdown To Chaos Part One: The Builder
Countdown To Chaos Finale: The Princess and the Hammer
Champions Part Two: Climbing the Brackets
March 31, 2015
Worlds Unite Part Seven: Gears and Wills
September 30, 2015
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