Sonic the Hedgehog 3 & Knuckles

Sonic the Hedgehog 3 & Knuckles is a platform video game which is the result of locking-on Sonic & Knuckles with Sonic the Hedgehog 3 using the former catridge's unique "lock-on" technology. It is essentially a large combined game of its two lock-on components and contains all Zones from the said games and also contains special features unique to this game. (https://www.igdb.com/games/sonic-the-hedgehog-3-and-knuckles)