Sonic 3 & Knuckles for Windows

Sonic 3 & Knuckles – The death egg of Dr. Eggman (also known as Dr. Robotnik) was detonated again by Sonic, crash-landing at the top of a volcano on Floating Island.

Dr. Eggman is still at large, and Sonic cannot allow him to obtain the Master Emerald and repair the Death Egg. Sonic also has to keep Knuckles off his back, but Knuckles has problems too. As the guardian of the Floating Isle and all Emeralds, Knuckles must do his part to keep the island safe. While they are arguing with each other, who will stop Dr. Eggman?