Sonic: Fight Club is the third Archie Digital Exclusive comic on Archie's Sonic App for digital devices. It contains reprints of older issues.
- "Otherside" - Part Two ("Cross-World Conflict!") (StH #194)
- "Turnabout is Fair Play" (StH #200)
- "Black and Blue and Red All Over" (StH #44)
- "Bat Fight!" (StH #116)
- "Thicker Than Water" - Part Two (StH #218)
- "Home Invasion" - Part Two: Security Measures (StH #211)
- The picture of Sonic and Knuckles on the cover is taken from the cover of Sonic Select Book 3.