Featuring enhanced gameplay elements, including the classic Sonic Spin Dash, and the versatile Homing Attack, Sonic 4 picks up right where Sonic and Knuckles
Sonic the Hedgehog returns to his roots of the 1990's Sega Gensis era with an all new 2D side scrolling adventure. Taking place after Sonic & Knuckles and the destruction of the Death Egg destroyed and Angel Island returned to the sky, Sonic takes a break and explores new territories by himself; however unknowingly his nemesis Dr. Eggman had somehow survived their last encounter, and revisits - and improves - the very best of his creations to defeat Sonic.—arorashadow_2003