Unlockable - Unlock Knuckles in Sonic 2 | |
| Knuckles in Sonic 2 | Play Sonic the Hedgehog 2 and Sonic Spinball 20 times each. |
Unlockable - Unlock Hints | |
| To unlock the Hints text for each game, keep it open for three hours. You don't have to play the game, just let it run. After three hours, exit out, and when you reenter the game, or check the Hints menu in the Options area, that game's hints will be available. | |
Unlockable - Unlock Blue Sphere game | |
| Play Sonic the Hedgehog and Sonic 3D Blast 20 times each, exit to the title screen and then go back into the game select screen and Blue Sphere will now be unlocked. | |
Unlockable - Unlock The Ooze and Comix Zone games | |
| Have a Sonic Heroes completed game save file on your Xbox hard drive. When you start the Sonic Mega Collection Plus game up, you will have Comix Zone and The Ooze unlocked from the start!! | |
Unlockable - Misc. Unlockables | |
| Sonic 3 & Knuckles | Play Sonic 3 20 times and Sonic & Knuckles 20 times |
| Ristar | Play Blue Sphere, Flicky, Knuckles in Sonic 2 and Sonic 3 and Knuckles 30 times. |
| The Ooze | Unlock everything except for Ristar |
Unlockable - Unlock Flicky | |
| Play Mean Bean Machine at least 30 times to unlock Flicky. You can just enter the game and exit as soon as it loads up. After the 30th time, exit to the title screen and enter the games menu again. | |
Unlockable - Alternate way to unlock Comix Zone | |
| Play and exit all non-gamegear games 50 times each, exit to the title screen and then go back into the game select screen and Comix Zone will now be unlocked. | |
Password - Blue Sphere Passwords. | |
| Enter these at the bottom of the screen to advance further in Blue Sphere. | |
| level 3060 | 5358 0229 2207 |
| level 3061 | 4800 3482 6223 |
| level 3062 | 5490 8984 7279 |
| level 3063 | 4761 4251 2111 |
| level 3064 | 5446 6066 2255 |
| level 3065 | 4545 3345 7903 |
| level 3066 | 5203 6725 3487 |
| level 3067 | 4474 1991 8319 |
| level 3068 | 5159 3806 8463 |
| level 3069 | 4601 7060 2479 |
| level 3070 | 5292 2562 3535 |
| 3390 | 3918 1393 3024 |
| 3391 | 3188 6659 7856 |
| 3392 | 3873 8474 8000 |
| 3393 | 5034 1597 3856 |
| 3394 | 4339 5829 9616 |
| 3395 | 4984 4991 7920 |
| 3396 | 4295 2911 4592 |
| 3397 | 5112 0060 2080 |
| 3398 | 4428 1666 9664 |
| 3399 | 5073 0828 7968 |
| 3400 | 4383 8748 4640 |
| level 3077 | 3737 5745 4319 |
| level 3076 | 2920 8596 6831 |
| level 3075 | 3610 0677 0159 |
| level 3074 | 2965 1515 1855 |
| level 3073 | 3659 7282 6095 |
| level 3072 | 5247 9643 8511 |
| level 3071 | 4562 7828 8367 |
| level 1982 | 3918 3700 1630 |
| level 1983 | 3188 8966 6462 |
| level 1984 | 3874 0781 6606 |
| level 1985 | 5034 3904 2462 |
| level 1986 | 4339 8136 8222 |
| level 1987 | 4984 7298 6526 |
| level 1988 | 4295 5218 3198 |
| level 1989 | 5112 2367 0686 |
| level 1990 | 4428 3973 8270 |
| level 1991 | 5073 3135 6574 |
| level 1992 | 4384 1055 3246 |
| level 1993 | 4857 2230 2366 |
| level 1994 | 4184 1211 1774 |
| level 1995 | 4829 0373 0078 |
| level 1996 | 4139 8292 6750 |
| level 1997 | 4956 5441 4238 |
| level 1998 | 4272 7048 1822 |
| level 1999 | 4917 6210 0126 |
| level 2000 | 4228 4129 6798 |
| level 2001 | 5388 7252 2654 |
| level 2002 | 4694 1484 8414 |
| Level 1 | 3659 8960 3263 |
| Level 2 | 2965 3192 9023 |
| Level 3 | 3610 2354 7327 |
| Level 4 | 2921 0274 3999 |
| Level 5 | 3737 7423 1487 |
| Level 6 | 3053 9029 9071 |
| Secret Level | 2340 2318 5760 |
| Level 7 | 3698 - 8191 - 7375 |
| Level 8 | 3009 - 6111 - 4047 |
| Level 9 | 3482 - 7286 - 3167 |
| Level 10 | 2809 - 6267 - 2575 |
| Level 11 | 3454 - 5429 - 0879 |
| Level 12 | 2765 - 3348 - 7551 |
| Level 13 | 3582 - 0497 - 5039 |
| Level 14 | 2898 - 2104 - 2623 |
| Level 15 | 3543 - 1266 - 0927 |
| Level 16 | 2853 - 9185 - 7599 |
| Level 17 | 4014 - 2308 - 3455 |
| Level 18 | 3319 - 6540 - 9215 |
| Level 19 | 3964 - 5702 - 7519 |
| Level 20 | 3275 - 3622 - 4191 |
| Level 21 | 4092 - 0771 - 1679 |
| Level 22 | 3408 - 2377 - 9263 |
| Level 23 | 4053 - 1539 - 7567 |
| Level 24 | 3363 - 9459 - 4239 |
| Level 25 | 3837 - 0634 - 3359 |
| Level 26 | 3163 - 9615 - 2764 |
| Level 27 | 3808 - 8777 - 1068 |
| Level 28 | 3119 6696 7740 |
| Level 29 | 3936 3845 5228 |
| Level 30 | 3252 5452 2812 |
| Level 31 | 3897 4614 1116 |
| Level 32 | 3208 2533 7788 |
| Level 33 | 2994 1761 0172 |
| Level 34 | 3673 9888 9404 |
| Level 35 | 2944 5155 4236 |
| Level 36 | 3629 6970 4380 |
| Level 37 | 3072 0223 8396 |
| Level 38 | 3762 5725 9452 |
| Level 39 | 3033 0992 4284 |
| Level 40 | 3718 2807 4428 |
| Level 41 | 2817 0087 0076 |
| Level 42 | 3518 2963 2956 |
| Level 43 | 2788 8229 7788 |
| Level 44 | 3474 0044 7932 |
| Level 45 | 2916 3298 1948 |
| Level 46 | 3606 8800 3004 |
| Level 47 | 2877 4066 7836 |
| Level 48 | 3562 5881 7980 |
Password - Dr. Robotnik's Mean Bean Machine Passwords (Easy). | |
| 2 | Red, Red, Red, Has Bean |
| 3 | Clear, Purple, Clear, Green |
| 4 | Red, Clear, Has Bean, Yellow |
| 5 | Clear, Blue, Blue, Purple |
| 6 | Clear, Red, Clear, Purple |
| 7 | Purple, Yellow, Red, Blue |
| 8 | Yellow, Green, Has Bean, Blue |
| 9 | Yellow, Purple, Has Bean, Blue |
| 10 | Red, Yellow, Clear, Has Bean |
| 11 | Green, Purple, Blue, Clear |
| 12 | Red, Has Bean, Has Bean, Yellow |
| 13 | Yellow, Has Bean, Blue, Blue |
Password - Dr. Robotnik's Mean Bean Machine Passwords (Hard). | |
| 2 | Green, Clear, Yellow, Yellow |
| 3 | Yellow, Clear, Purple, Clear |
| 4 | Blue, Green, Clear, Blue |
| 5 | Red, Purple, Green, Green |
| 6 | Yellow, Yellow, Clear, Green |
| 7 | Purple, Clear, Blue, Blue |
| 8 | Clear, Yellow, Has Bean, Yellow |
| 9 | Purple, Blue, Blue, Green |
| 10 | Clear, Green, Red, Yellow |
| 11 | Blue, Yellow, Yellow, Has Bean |
| 12 | Green, Clear, Clear, Blue |
| 13 | Has Bean, Clear, Purple, Has Bean |
Password - Dr. Robotnik's Mean Bean Machine Passwords (Hardest). | |
| 2 | Blue, Blue, Green, Yellow |
| 3 | Green, Yellow, Green, Clear |
| 4 | Purple, Purple, Red, Has Bean |
| 5 | Green, Red, Purple, Blue |
| 6 | Blue, Purple, Green, Yellow |
| 7 | Blue, Purple, Green, Has Bean |
| 8 | Clear, Purple, Has Bean, Yellow |
| 9 | Purple, Green, Has Bean, Clear |
| 10 | Green, Blue, Yellow, Has Bean |
| 11 | Green, Purple, Has Bean, Red |
| 12 | Red, Green, Has Bean, Blue |
| 13 | Red, Red, Clear, Yellow |
Password - Dr. Robotnik's Mean Bean Machine Passwords (Normal). | |
| 2 | Has Bean, Clear, Yellow, Yellow |
| 3 | Blue, Clear, Red, Yellow |
| 4 | Yellow, Blue, Clear, Purple |
| 5 | Has Bean, Green, Blue, Yellow |
| 6 | Green, Purple, Purple, Yellow |
| 7 | Purple, Blue, Green, Has Bean |
| 8 | Green, Has Bean, Clear, Yellow |
| 9 | Blue, Purple, Has Bean, Has Bean |
| 10 | Has Bean, Red, Yellow, Clear |
| 11 | Clear, Red, Red, Blue |
| 12 | Green, Green, Clear, Yellow |
| 13 | Purple, Yellow, Has Bean, Clear |
Password - Ristar Codes. | |
| Cancel all codes. | XXXXXX |
| Fight only bosses. | MUSEUM |
| Level select. | ILOVEU |
| See hidden items. | MIEMIE |
| Super hard mode. | SUPER |
| Time attack. | DOFEEL |
| Tone deaf sounds. | MAGURO |
| Very hard difficulty. | SUPERB |
Password - Codes for Sonic the Hedgehog | |
| Just like in the original SEGA Genesis version, at the title screen you can enter these codes: | |
| press X+Start to get the Stage Select Screen | Up, Down, Left, Right |
| Hold X when starting a level to get Debug Mode | Up, B, Down, B, Left, B, Right, B |
Password - Sonic 3 & Knuckles Level Select and Debug Mode | |
| In Angel Island, continue through the level untill you come to the swinging vines near the bonus stage ring and jump up and grab one. While swinging press Left, Left, Left, Right, Right, Right, Up, Up, Up. You should hear a ring chime. Now pause the game and press X to return to the main menu. There should be a new option, Sound Test. Select it and you will enter the sound test/stage select menu. In here select Mushroom Hill Zone and play through the stage untill you come to the ratchet machine. Jump up and hang from it then press Left, Left, Left, Right, Right, Right, Up, Up, Up. Now pause and press X again to reset. Go back to the level select menu and select any level while holding X and you can now use debug mode which allows you to change in and out of objects from the current level by pressing A, change the current object by pressing B, and make a copy of the current object by pressing X. Also you can reset the game any time by pausing and pressing X. | |
| Level Select/Debug mode | Left, Left, Left, Right, Right, Right, Up, Up, Up |
Password - Sonic 2 & Knuckles Level Select, Debug Mode, All Chaos Emeralds | |
| At the main menu press Up, Up, Up, Down, Down, Down, Left, Right, Left, Right. You should hear a ring chime. Hold X and press start to access the Level Select menu.At the Level Select menu go to the sound test option and play the following tracks in this order: 01 09 09 04 01 00 01 08. At the last tune/sound effect you should hear a ring chime which enables Debug mode. Holding X when selecting a level will allow you to change in and out of objects from the level by pressing the A button, changing objects by pressing the B button, and making a copy of the current object by pressing the X button. You can also reset the game by pausing and pressing X.Also at the Level Select menu play the following tracks in this order: 01 06 07 07 07 02 01 06. You should hear the emerald chime which means you now have all the chaos emeralds. Alternatively, you could just select the special stage from the Level Select menu and keep playing them untill you get them all. | |
Password - Flicky Round Select | |
| At the Title Screen, press the Start Button. On the "How to play" screen, Hold the following buttons: Up + X Button + B Button and press the Start Button. | |
Password - Change Tails' name to Miles in Sonic 2 | |
| At the title screen menu, press up, down, down, down, up, and you will hear a ring tone. Now the character select and the lives counter will say Miles instead of Tails! | |
Password - Comix Zone Jukebox Codes | |
| Select the jukebox from the options and play the followin tracks in order for the following effect. | |
| Invincibility | 3,12,17,2,2,10,2,7,7,11 |
| Stage Select | 14,15,18,5,13,1,3,18,15,6 |