Sonic 3 & Knuckles

Sonic 3 & Knuckles is a game for the Sega Mega Drive. It is the result of locking-on Sonic the Hedgehog 3 and Sonic & Knuckles. It can be unlocked by playing 20 times of Sonic the Hedgehog 3 and Sonic & Knuckles.

Levels

 * 1) Angel Island Zone
 * 2) Hydrocity Zone
 * 3) Marble Garden Zone
 * 4) Carnival Night Zone
 * 5) Icecap Zone
 * 6) Launch Base Zone
 * 7) Mushroom Hill Zone
 * 8) Flying Battery Zone
 * 9) Sandopolis Zone
 * 10) Lava Reef Zone
 * 11) Hidden Palace Zone
 * 12) Sky Sanctuary Zone
 * 13) Death Egg Zone
 * 14) The Doomsday Zone