. Due to development deadlines and the high cost of high-capacity cartridges, the developers split the game into two halves. When a user "locked on" Sonic & Knuckles , the console read the combined data to create Sonic 3 & Knuckles

It is strongly recommended to use the official ROMs from verified storefronts or the Internet Archive to ensure your system remains secure.

Files for sonic-and-knuckles-sonic-3_202309 - Internet Archive