When X-treme was canceled , Sega commissioned a port of 3D Blast for the Saturn as a backup plan .
Produced as a swan song for the Genesis , Sonic 3D Blast was developed alongside the unreleased Saturn game Sonic X-treme .
When Sonic X-treme was canceled , Genesis commissioned a port of Sonic 3D Blast   for the Saturn as a backup plan .
Produced as a swan song for the Genesis , Sonic 3D Blast was developed alongside the unreleased Saturn game Sonic X-treme .