How to Get debug mode in Sonic & Knuckles

Ever wonder how you get debug mode in the classic Sonic and Knuckles game? It's not directly possible, but, by exploiting a class 7 bug (very severe as it'll crash the game) with Sonic 3 & Knuckles, you can. There's only one requirement: you've obtained all the emeralds and have the ability to transform. Take a look at this instructional video and learn how to get this mode in the game.