Seaside Hill Zone is a large beachside area with endless roads, of which Sonic the Hedgehog and other heroes frequently visit. The heroes first came through this area in their adventure to defeat Metal Overlord, and Sonic later came by the area again when time was distorted by the Time Eater. At some point, Sonic also raced along the area in search of Red Rings. (VG: SH, SG, SSSM: #10)
- Seaside Hill is a reoccurring location in the Sonic video games that first made its debut in Sonic Heroes. The comic story in which it debuted is in reference to its appearance as the setting for the iOS game Sonic Dash.