Double Dragon II (NES/PCE) – Hardcore Gaming 101

Double Dragon (video game), Double Dragon Wiki

PC Engine Super CD-Rom – Double Dragon II: The Revenge

Hardcore Gaming 101 Digest Vol. 6: Namco Arcade Classics - Kindle edition by Kalata, Kurt, Tiraboschi, Federico, Burns, Ed, Derboo, Sam, Plasket, Michael, Monnens, Aiden, Provost, Hugo, Sawyer, Michael. Humor & Entertainment

Double Dragon – Hardcore Gaming 101

Double Dragon 2 (Arcade) – Hardcore Gaming 101

Double Dragon – Hardcore Gaming 101

Double Dragon 2 (Arcade) – Hardcore Gaming 101

Double Dragon – Hardcore Gaming 101

Double Dragon II (NES/PCE) – Hardcore Gaming 101

Double Dragon II (NES/PCE) – Hardcore Gaming 101