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Sonic and Knuckles - Game Genie Codes

AFKT-AAG0       Start with 1 life instead of 3
BFKT-AAG0       Start with 9 lives
DFKT-AAG0       Start with 25 lives
GKKT-AAG0       Start with 50 lives
NPKT-AAG0       Start with 99 lives
K2WA-CA4J       Infinite lives
AWXT-CA4C       Don't lose rings when hit
HXRT-AA6A       Infinite time
96BA-CAG6 + 98MA-CAF0   Keep shields (fire, water, lightning) when hit
AKVT-AA76 + AMNA-EA24   Keep rings between levels
ATGT-CA3Y       Super shoes don't run out with time
RENT-C6YA       Sonic can always double jump (can't use water shield or become Super Sonic)
RENT-C6V6       Sonic can always use Fireball Spin Dash (can't double jump, bounce, or become Super Sonic)
RGSA-A6YY       Only 1 blue sphere needed to get a chaos emerald
AANA-CNA0       Sonic jumps as high as Knuckles (slightly lower than usual)
4ANA-CRA0       High jump for Sonic
2ANA-CWA0       Super jump for Sonic
AANA-C4A0       Mega jump for Sonic
AANA-DYA0       Orbital jump for Sonic
TB5T-CNCR       Knuckles jumps as high as Sonic (slightly higher than usual)
PV5T-CRCR       High jump for Knuckles
AB5T-CWCR       Super jump for Knuckles
AB5T-C2CR       Mega jump for Knuckles
AB5T-DTCR       Orbital jump for Knuckles
ALNA-AACR       Rings worth 2 in special stage
A0NA-AACR       Rings worth 5 in special stage
BLNA-AACR       Rings worth 10 in special stage
A2NT-CAG6       Only 6 chaos emeralds needed to become Super Sonic
AYNT-CAG6       Only 5 chaos emeralds needed to become Super Sonic
ATNT-CAG6       Only 4 chaos emeralds needed to become Super Sonic
ANNT-CAG6       Only 3 chaos emeralds needed to become Super Sonic
AJNT-CAG6       Only 2 chaos emeralds needed to become Super Sonic
AENT-CAG6       Only 1 chaos emerald needed to become Super Sonic
AANT-CAG6       Become Super Sonic without any chaos emeralds
NTNT-CAHL       100 rings needed to become Super Sonic instead of 50
BJNT-CAHL       10 rings needed to become Super Sonic
AENT-CAHL       1 ring needed to become Super Sonic
AANT-CAGY + AAPA-CAB8   Become Hyper Sonic without any emeralds
NTPT-CA50       Rings aren't used up as Super Sonic/Knuckles
RHJA-E60L       Bonus round always activated after every checkpoint
BXLA-EA5G       Bonus round is always Slot Machine
A5LA-EA5G       Bonus round is always Glowing Spheres
A36A-CACW       Only 6 chaos emeralds needed to become Super Knuckles
AZ6A-CACW       Only 5 chaos emeralds needed to become Super Knuckles
AV6A-CACW       Only 4 chaos emeralds needed to become Super Knuckles
AP6A-CACW       Only 3 chaos emeralds needed to become Super Knuckles
AK6A-CACW       Only 2 chaos emeralds needed to become Super Knuckles
AF6A-CACW       Only 1 chaos emerald needed to become Super Knuckles
AB6A-CACW       Become Super Knuckles without any chaos emeralds
NV6A-CADA       100 rings needed to become Super Knuckles instead of 50
BK6A-CADA       10 rings needed to become Super Knuckles
AF6A-CADA       1 ring needed to become Super Knuckles
AB6A-CACL + AB6A-CAHR   Become Super-Duper Knuckles without any emeralds
ACCT-CA2R       Can't drown