A number of Japan-exclusive Sonic the Hedgehog manga stories are not readily available online, and none of them have official English adaptations. In addition, information about a number of these stories is sparse. As a result, the below is a a list of what limited information we currently have available about the manga entries that are not listed on the Adventures Master List.

Dash & Spin

In the early 2000s, Shogakukan again published a Sonic manga via Bessatsu CoroCoro Comic. This manga was relatively short-lived by contrast to their previous manga and much more comedic in tone. The chapter titles from the first volume of strips are listed in the 2003 section of the Adventure Master List but information on the second volume is limited. This volume came out in 2005. In addition, Sonic appeared in a special issue of CoroCoro Comic in 2002. Note also that due to limited available information, the 2003 date for volume one may well be inaccurate.

Dengeki Nintendo DS

Between 2008 and 2013, Dengeki Nintendo DS magazine printed several Sonic manga. A 4-koma style manga starring Sonic was one such manga, but little information exists about it online.