Sonic & Knuckles + Sonic the Hedgehog 3 (World): The Ultimate Sonic Adventure

Sonic & Knuckles + Sonic the Hedgehog 3 (World) is a combined ROM of two iconic Sega Genesis titles: Sonic the Hedgehog 3 and Sonic & Knuckles. Released in 1994, this game utilizes Sega’s innovative “lock-on” technology, allowing players to experience the full, uninterrupted adventure as originally intended by the developers.

In this combined version, players can enjoy all 14 zones from both games, seamlessly integrated into a single, expansive journey. The game introduces new features, including:

  • Playable Knuckles in Sonic 3 zones: Explore previously inaccessible areas with Knuckles’ unique abilities.
  • Super Emeralds: Unlock powerful Hyper forms for Sonic and Knuckles by collecting all Super Emeralds.
  • Enhanced save system: Utilize the expanded Data Select menu with eight save slots.