These codes are for the European version of the game.
- Master Code – Must Be On
9X45-8AYJ-T3A07
J5E5-A3QD-F41C5
Have Blue Sphere Open
RFN8-YDUE-XTEG0
E51J-BMR6-PB357
Have Knuckles in Sonic 2 Open
RKM8-BT5U-2VPWJ
8AZG-TEHP-9C5QQ
Have Sonic 3 & Knuckles Open
FRVM-KFZU-46XDP
JQEC-UT6N-GVKNP
Have Flicky open
X92D-VKEP-AVGWP
Y0X4-N7EC-2BB32
Have Ristar open
98EZ-5EEM-WYG8R
UM6F-6Y3B-Q9RAR
Sonic 1 Codes
Infinite lives
NPX6-64D0-VEMBH
ZWYB-XYRM-H85NP
Always have 99 rings
NADH-99V3-9Z3B6
5X97-UXZN-4DAWT
Freeze timer
UD65-UW6R-DAXDA
1V7B-43PV-X561J
Invincible
6ATT-XWVF-XVYH2
VTQW-1TF0-A3E29
Sonic 2 Codes
Infinite lives
CYDK-VP10-TDXC0
EE3J-W5Z5-DDTVE
Always have 99 rings
AB15-NTJX-VAHCH
CFBU-0Q9M-GRN0V
Freeze timer
029Z-M9ZN-MKPPK
J0RG-UMQT-DWBQF
Invincible
FAMQ-CAEE-2MMP0
ZY4T-V3JR-7V407
Sonic 3 Codes
Infinite lives
76TD-18QB-AB81E
2456-QJDP-FW7FC
Always have 99 rings
DYFT-3GPP-230D1
88DF-F7HW-ZRA4U
Infinite air – sonic and tails
JY6N-FNEQ-U27ND
57FT-Y1B6-Y0UDM
GRKZ-Y1UU-TRQGF
Freeze timer
5HBP-UFVP-8TW20
KPVD-YKNR-A79ZB
Invincible Sonic
MFT0-KJWC-4RPBV
39TK-CEN2-ZQFJM
Invincible Tails
JQJ9-Q45W-6AJWT
6FZW-HDEQ-88YX5
Sonic and Knuckles Codes
Always have 99 rings
EJCB-NDN0-1WXAP
CNK2-UYCW-5U68N
Freeze timer
9P25-E2VY-52XG3
TCAV-ZVPZ-G6ENG
Infinite lives
6TN1-NZ5M-NEBK2
4NK7-3PPR-GGY2U
Knuckles in Sonic 2 Codes
Infinite lives
0THB-GVK6-YA89D
C154-BDXX-T5FKH
Always have 99 rings
TH66-HK5M-VNRZM
G5Q7-UFCR-HBM1B
Freeze timer
DK9D-QHNB-PJ17F
BBF7-Q5RP-JQX6Y
Invincible
YRP3-KVCP-YH155
Y0J6-XFDH-BUND7
Sonic 3 and Knuckles Codes
Infinite lives
2UU4-EM95-UE33P
QPDJ-AVPK-FAQQM
Always have 99 rings
J000-Y6VZ-9CCGM
D3CX-EHU6-K15KV
Freeze timer
RKBH-9PK5-QQYT7
HJ8G-CBCB-AJEDQ
Sonic 3D Flikies Land Codes
Infinite lives
DGJY-4QX2-210X6
DXHE-8PTP-WR9AZ
Always have 99 rings
M35U-G2J5-YY6P3
9B5T-HKUX-1T6F0
K6RC-727K-P6U1R
Sonic Spinball Codes
Infinite balls
EECM-UCV9-172ZD
9ZVY-UUC0-KEDK4
Have 3 Emeralds/Boss Room Open
GURG-A2AD-663ZC
X5MP-TDAE-9BM5U
Ristar Codes
Infinite health
FHB3-0JC9-5NJWW
CUKR-5Z7U-F9BHJ