You have to have the genesis game called "Sonic and Knuckles". This cartridge is special because it allows another cartridge to be placed on top of it. You place "Sonic 3" on top of "Sonic and Knuckles" and you get to play as Knuckles. Same goes with "Sonic 2".
Well, I will tell you how to do it on Sonic & Knuckles (I think Sonic 3 and Sonic & Knuckles are VERY alike!)
Step 1: Start the game on Sonic & Knuckles, you should start out at Mushroom Hill Zone 1
Step 2: Go to the first Pulley or Swing or the thing that you grab and keep pressing down
Step 3: On it, press "Left Left Left, Right Right Right, Up Up Up" you should hear the chime which is a Ring Noise (On the Sega you use the Original Controller, on the Gamecube, you use the D-Pad which is on the left of the C-Pad)
Step 4: Press Start and press A (A is the B button on the Game Cube)
Step 5: When the "SEGA" logo is FULLY off the screen, hold A and press Start
(You should be at the Level Select Screen)
Step 6: As you can see, there are 2 Lave Reef Zones, the one with Zone 3 & 4, that is our main thing
Step 7: Go to Lava Reef Zone 4, it is actually the Hidden Palace Zone disguised as Lava Reef Zone 4 (Hidden Palace is basically just Sonic facing off with Knuckles, it's not very intresting)
I hope this helped!!
~Sonic Master of Doom
You fly to fairy land and eat chips
Yes except in sonic 3 and knuckles, you can be knuckles. :)
You can play Sonic 3, or Sonic & Knuckles but unfortunately you cant play Sonic 3 & Knuckles on Sonic's Ultimate Genesis Collection.
Yes,but on the sonic & knuckles side,not sonic 3 side
Not on it's own, no. You can lock Sonic 3 onto Sonic and Knuckles and play as Knuckles through both games, though.
Years, you can. I own Sonic Classic Collection and my favorite game in it is Sonic 3 and Knuckles
You don't. You need sonic 3 & knuckles to play as Knuckles.
play sonic 3 once and sonic and knuckles twice
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
"Knuckles Chaotix". Even though "Sonic 3" and "Sonic and Knuckles" were two separate games for the Sega Genesis, but the were both in the same story line. It started in "Sonic 3" and then continued in "Sonic and Knuckles". Knuckles Chaotix for the 32x, is his second game.
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.
You can play them in the Sonic Mega Collection Games, but not in Sonic Gems:i can go super sonic says:but you need to unlock sonic 3 and knuckles that's what i had to do!
knuckles in sonic two, blue sphere, sonic 3 and knuckles, flickey and ristar.