Created by TRaiNoR, this ROM hack combines elements of Sonic and Shadow the Hedgehog, adding a double jump mechanic. The game features custom levels, sprites, and music. Gameplay is enhanced with new abilities while retaining the core platforming style of the Sonic series. It showcases fan-made creativity within the Sonic community.

SoNiC & SHADOW Double jump 2 by TRaiNoR

Sonic & Knuckles + Sonic the Hedgehog 3 (World)