There is no cheat. Just lock on your "Sonic & Knuckles" cartridge with your "Sonic 2" cartridge.
Yes, it does! if you put Sonic 1 on it, it comes up with Blue Sphere the special stage in sonic and knuckles, If sonic 2 is in it, you can play as Knuckles in sonic 2 and reach places you couldn't with sonic!, but if you put sonic 3 in it it plays Sonic 3 and Knuckles and play sonic 3 as knuckles, acsess cheat code, but the final boss of sonic 3 is disabled as knux and Sonic 4 don't work cos that's for PS3 and Xbox 360 and wii
You can only get Knuckles in Sonic 2 if you stack Sonic 2 and Sonic and Knuckles on the Genesis. Otherwise Knuckles cannot be played in the game.
No he cant. Only on sonic adventure, sonic adventure 2, sonic DX and sonic adventure 2 battle.
those are the sonic 3 levels play sonic 3 and knuckles level select you can to get it play sonic3 and sonic and knuckles 20 times each
sonic 1, sonic 2, sonic 3, sonic and knuckles, blue sphere, knuckles in sonic 2, sonic 3 and knuckles, sonic 3d blast, sonic spinball, dr. robotnik's mean bean machine, flicky, and ristar.
If you're referring to Sonic Mega Collection PLUS, you have to unlock it by playing both Sonic 2 and Sonic & Knuckles for a set amount of time, and you have to save it. Press R1, "Quit Game", then confirm it. Go back to the Main Menu, then reselect "Games." Sonic 2 will be available. Note: you can't use cheat codes in this game.
no
sonic tails knuckles
In Knuckles in Sonic the hedgehog 2, collect all the 7 Chaos Emeralds and jump with over 50 rings to transform into Super Knuckles.
2
Yes except in sonic 3 and knuckles, you can be knuckles. :)
Finish Sky Canyon level as Sonic.