The following are known Action Replay Codes for Metroid Prime 2: Echoes on Nintendo GameCube (GCN).
Master Code – Must Be On
6QC5-30T6-F3Q31
XQBV-AXAP-86QZ0
42AC-TVD6-JXG37
356M-Z1CN-NMM7W
5ZW4-PG70-JE0UM
XKYE-ENHH-JH1HT
7810-27Y8-4QGMM
Master Code #2 – Must Be On
84DG-3YYB-Q8MNP
0ZA6-UD1P-XU0K7
W83J-G7ZX-NXM63
KCX7-PJUT-6PPW3
Y39N-C48W-VR2DC
Infinite Health
A358-EXX7-KM2BJ
NXEX-PP1E-BWZKA
9Z2C-FGYA-B00P7
Max Energy Tanks
827U-5C6R-YJXD2
KX89-C0VT-XA7Y5
FYYB-D91W-GXXKR
Maximum Missiles
PAQW-6EG6-QJXDU
C1WE-HGGG-JDH0K
Infinite Missiles
15Z8-BAEM-XVRC4
6N63-BA14-EYQN5
BEAM WEAPON CODES:
X1PR-UMRA-JQRHZ
Have Charge Beam
A8UP-55VH-F5HRT
9J0C-TAP1-523VJ
Z1BU-JNVH-1AB26
Have Dark Beam
PWHY-ZCCT-1D13G
GQRR-NMU2-7XUHA
FPRW-UYWE-PXHPK
Have Light Beam
DGGH-N2QE-2UBKC
H18K-46K9-R0M2A
W4NG-09ER-DFAKT
Have Annihilator
KAF0-8302-NT20R
DEP3-DD2W-JGQBU
4YHE-GHQJ-6WKKR
CHARGE COMBO CODES:
2RE4-UP6U-975HU
Have Super Missile
KF26-BAM9-FXX3N
2087-8T1Y-CUZQA
5CWC-3QMT-6TGWU
Have Darkburst
D0ME-P5YE-2HHG0
7VCT-UVA8-134BD
K5VJ-THEV-Y6FR8
Have Sunburst
TB12-GMWX-U5E65
63NN-KMJY-GB9V2
84G1-G7WX-5KKXB
Have Sonic Boom
8RTK-DJ5R-KVK6M
W0H8-1UGE-C1FX7
EKUZ-CPDW-J79JR
VISOR CODES:
9BPW-BXCU-X05GV
Have Combat Visor
3N69-74GC-XAARC
DKTC-D8FG-5H6GT
E15G-KUFG-B2MHR
Have Scan Visor
HC74-J3W1-4UN8H
3B2V-4U3M-7732W
NPJR-3JE3-YAJGH
Have Dark Visor
755D-2B23-J92F3
JMHX-H2UR-M42GU
PC27-M31B-HNHMR
Have Echo Visor
G9GQ-Z55G-MQR5X
58NH-WZ9V-TMF4M
MTT7-3KHG-5WH2G
ARMOR CODES:
10B2-9X35-VWAMR
Have Varia Suit
2W4H-9788-YJGKM
BKC7-1R1T-TEK86
Y1ER-6B7P-NJ3RC
Have Dark Suit
Q3JP-72W5-J5A33
B8KN-FKHF-1T12T
8CRR-FMUG-ZXZVG
Have Light Suit
FGRD-83Z7-UMM2P
6WYX-4AGM-20MN2
NUX1-FBY4-ZWFN5
MOVEMENT SYSTEMS CODES:
Z1EZ-MDA6-6GCC3
Have Space Jump Boots
VT0N-Q141-0V7WN
7Q1F-RGHW-GPFEP
0EVJ-2E62-0TW66
Have Grapple Beam
8WAR-7JC4-0Q9MV
TMNE-J0DZ-NFW8C
32BW-TEU1-DV85W
Have Gravity Boost
QDQ1-UPUA-PJ4G3
V0PG-GRTW-9D356
DDUC-70BF-M6F9E
Have Screw Attack
7QEP-X1ZX-X974K
67BZ-U2Q7-QH06Y
77QT-CEH5-KTZE5
MISCELLANEOUS CODES:
5XGR-XZ90-VYGQK
Have Seeker Missile
445V-G64A-EEPFT
DVG0-K9Y5-4THVD
7THM-11QB-JJP9C
Have Morph Ball Power Bomb
VN09-QVHR-6RV6Z
ZTRQ-510C-VKMUW
46UG-ZN41-610T7
Have Beam Ammo Expansion
JBJE-W3FU-3DQ07
EVEY-FP2D-Z57PX
HUF8-UX30-B82BZ
DARK TEMPLE KEYS:
T7FU-XJ9Y-7V9KT
Have Sky Temple Key 1
J131-ZF7J-MFW7X
PQAC-GATF-3Z57N
V4FP-66KK-2875Z
Have Sky Temple Key 2
1CKK-9GE2-0W1RA
6X7R-W3VG-TBN48
AWFF-CZFX-C0VK7
Have Sky Temple Key 3
EXXR-XAMB-33KAN
METU-HVV8-U596N
Q86F-QPGN-U85WT
Have Agon Temple Key 1
2W44-8XA2-D8Z0Z
R5XX-F76M-PNZKG
019Q-BQUB-ZA1XY
Have Agon Temple Key 2
0H6D-U9FN-85B5K
67RX-TCUF-NAJ9V
3BRE-ZV35-1XBAZ
Have Agon Temple Key 3
ZMZ5-09FY-HG991
5QPH-BNGD-ZCB20
7NMQ-4AEH-FAEG5
Have Torvus Temple Key 1
T526-WWGT-0F07D
PH8J-55C2-89KQ1
6MT6-F13F-9JFV5
Have Torvus Temple Key 2
6BRY-WU3C-0VPVH
B534-5Q4Q-3BMTK
QF1U-BXQH-CGAHQ
Have Torvus Temple Key 3
K12T-PBVN-89P3E
MPVK-E6B4-42QAZ
300V-862V-DDEXP
Have Ing Hive Temple Key 1
829C-U0FP-BZ11M
E8KQ-PK78-XZJU2
09RJ-MYE4-CH8R1
Have Ing Hive Temple Key 2
DRMZ-GMYM-X59TQ
RG1E-DK72-3934A
7YJ5-YENF-CKZ83
Have Ing Hive Temple Key 3
2Z2Y-CM3N-WEP6U
NDYV-461J-BMZ9Q
2F9Q-9R3P-HKR4M
Master Code – Must Be On
6QC5-30T6-F3Q31
XQBV-AXAP-86QZ0
42AC-TVD6-JXG37
356M-Z1CN-NMM7W
5ZW4-PG70-JE0UM
XKYE-ENHH-JH1HT
7810-27Y8-4QGMM
Master Code #2 – Must Be On
84DG-3YYB-Q8MNP
0ZA6-UD1P-XU0K7
W83J-G7ZX-NXM63
KCX7-PJUT-6PPW3
Y39N-C48W-VR2DC
Infinite Health
A358-EXX7-KM2BJ
NXEX-PP1E-BWZKA
9Z2C-FGYA-B00P7
Max Energy Tanks
827U-5C6R-YJXD2
KX89-C0VT-XA7Y5
FYYB-D91W-GXXKR
Maximum Missiles
PAQW-6EG6-QJXDU
C1WE-HGGG-JDH0K
Infinite Missiles
15Z8-BAEM-XVRC4
6N63-BA14-EYQN5
BEAM WEAPON CODES:
X1PR-UMRA-JQRHZ
Have Charge Beam
A8UP-55VH-F5HRT
9J0C-TAP1-523VJ
Z1BU-JNVH-1AB26
Have Dark Beam
PWHY-ZCCT-1D13G
GQRR-NMU2-7XUHA
FPRW-UYWE-PXHPK
Have Light Beam
DGGH-N2QE-2UBKC
H18K-46K9-R0M2A
W4NG-09ER-DFAKT
Have Annihilator
KAF0-8302-NT20R
DEP3-DD2W-JGQBU
4YHE-GHQJ-6WKKR
CHARGE COMBO CODES:
2RE4-UP6U-975HU
Have Super Missile
KF26-BAM9-FXX3N
2087-8T1Y-CUZQA
5CWC-3QMT-6TGWU
Have Darkburst
D0ME-P5YE-2HHG0
7VCT-UVA8-134BD
K5VJ-THEV-Y6FR8
Have Sunburst
TB12-GMWX-U5E65
63NN-KMJY-GB9V2
84G1-G7WX-5KKXB
Have Sonic Boom
8RTK-DJ5R-KVK6M
W0H8-1UGE-C1FX7
EKUZ-CPDW-J79JR
VISOR CODES:
9BPW-BXCU-X05GV
Have Combat Visor
3N69-74GC-XAARC
DKTC-D8FG-5H6GT
E15G-KUFG-B2MHR
Have Scan Visor
HC74-J3W1-4UN8H
3B2V-4U3M-7732W
NPJR-3JE3-YAJGH
Have Dark Visor
755D-2B23-J92F3
JMHX-H2UR-M42GU
PC27-M31B-HNHMR
Have Echo Visor
G9GQ-Z55G-MQR5X
58NH-WZ9V-TMF4M
MTT7-3KHG-5WH2G
ARMOR CODES:
10B2-9X35-VWAMR
Have Varia Suit
2W4H-9788-YJGKM
BKC7-1R1T-TEK86
Y1ER-6B7P-NJ3RC
Have Dark Suit
Q3JP-72W5-J5A33
B8KN-FKHF-1T12T
8CRR-FMUG-ZXZVG
Have Light Suit
FGRD-83Z7-UMM2P
6WYX-4AGM-20MN2
NUX1-FBY4-ZWFN5
MOVEMENT SYSTEMS CODES:
Z1EZ-MDA6-6GCC3
Have Space Jump Boots
VT0N-Q141-0V7WN
7Q1F-RGHW-GPFEP
0EVJ-2E62-0TW66
Have Grapple Beam
8WAR-7JC4-0Q9MV
TMNE-J0DZ-NFW8C
32BW-TEU1-DV85W
Have Gravity Boost
QDQ1-UPUA-PJ4G3
V0PG-GRTW-9D356
DDUC-70BF-M6F9E
Have Screw Attack
7QEP-X1ZX-X974K
67BZ-U2Q7-QH06Y
77QT-CEH5-KTZE5
MISCELLANEOUS CODES:
5XGR-XZ90-VYGQK
Have Seeker Missile
445V-G64A-EEPFT
DVG0-K9Y5-4THVD
7THM-11QB-JJP9C
Have Morph Ball Power Bomb
VN09-QVHR-6RV6Z
ZTRQ-510C-VKMUW
46UG-ZN41-610T7
Have Beam Ammo Expansion
JBJE-W3FU-3DQ07
EVEY-FP2D-Z57PX
HUF8-UX30-B82BZ
DARK TEMPLE KEYS:
T7FU-XJ9Y-7V9KT
Have Sky Temple Key 1
J131-ZF7J-MFW7X
PQAC-GATF-3Z57N
V4FP-66KK-2875Z
Have Sky Temple Key 2
1CKK-9GE2-0W1RA
6X7R-W3VG-TBN48
AWFF-CZFX-C0VK7
Have Sky Temple Key 3
EXXR-XAMB-33KAN
METU-HVV8-U596N
Q86F-QPGN-U85WT
Have Agon Temple Key 1
2W44-8XA2-D8Z0Z
R5XX-F76M-PNZKG
019Q-BQUB-ZA1XY
Have Agon Temple Key 2
0H6D-U9FN-85B5K
67RX-TCUF-NAJ9V
3BRE-ZV35-1XBAZ
Have Agon Temple Key 3
ZMZ5-09FY-HG991
5QPH-BNGD-ZCB20
7NMQ-4AEH-FAEG5
Have Torvus Temple Key 1
T526-WWGT-0F07D
PH8J-55C2-89KQ1
6MT6-F13F-9JFV5
Have Torvus Temple Key 2
6BRY-WU3C-0VPVH
B534-5Q4Q-3BMTK
QF1U-BXQH-CGAHQ
Have Torvus Temple Key 3
K12T-PBVN-89P3E
MPVK-E6B4-42QAZ
300V-862V-DDEXP
Have Ing Hive Temple Key 1
829C-U0FP-BZ11M
E8KQ-PK78-XZJU2
09RJ-MYE4-CH8R1
Have Ing Hive Temple Key 2
DRMZ-GMYM-X59TQ
RG1E-DK72-3934A
7YJ5-YENF-CKZ83
Have Ing Hive Temple Key 3
2Z2Y-CM3N-WEP6U
NDYV-461J-BMZ9Q
2F9Q-9R3P-HKR4M