Action Replay Codes [US]

The following are known Action Replay Codes for Gradius Galaxies on Nintendo Game Boy Advance (GBA).
These codes were also known as GameShark Codes and in most cases will work on both devices.

These codes are for the U.S. version of the game.

Master Code – Must Be On
b823843b
a1f907ab
5ba14bfa
015a315f

Infinite Lives
facf9352
ec275fea

All Levels
94aecc25
a2a81f77

Max Score
b7ce538c
348343ec

Just Have Speed Up
ba0e2376
8f7cb9f0

Just Have Missile
1ddac054
4ec63d4a

Just Have Double
f4837669
bef3c2de

Just Have Question
abf8fa01
c342e257

Have All Power Ups
cddf06ff
3a67cec9

Just Have Laser
bb7e145a
e31edca6

Just Have Option
5eacf517
c8e4a39c

Code Breaker Codes [US]

The following are known Code Breaker Codes for Gradius Galaxies on Nintendo Game Boy Advance (GBA).

These codes are for the U.S. version of the game.

• Master Code – Must Be On
  0000C984 000A
  10000914 0007
• Invincible
  83004D90 0001
• Infinite Lives
  83004D46 0009
• Quick Score Gain
  83004D3C FFFF
• Max Score
  83004D3C 423F
  83004D3E 000F
• Super Speed Space Ship
  33004D9D 0004
• Have All Powerups
  83003A26 0000
  33004DA8 0007
• Always Full Shield
  33005984 0009

Manual Mode Codes

• Press Select For Speedup Option
  74000130 03FB
  33004DA8 0001
• Press Select+Up For Missiles Option
  74000130 03BB
  33004DA8 0002
• Press Select+Down For Double Option
  74000130 037B
  33004DA8 0003
• Press Select+Left For Laser Option
  74000130 03DB
  33004DA8 0004
• Press Select+Right For Muliple Option
  74000130 03EB
  33004DA8 0005
• Press Select+Left Trigger For Shield Option
  74000130 01FB
  33004DA8 0006
• Unlock Stages (Easy)
  83004C88 FFFF
  83004C8A FFFF
• Unlock Stages (Normal)
  83004C8C FFFF
  83004C8E FFFF
• Unlock Stages (Hard)
  83004C90 FFFF
  83004C92 FFFF
• Unlock All Stages
  43004C88 FFFF
  00000006 0002

Start On Stage Codes

• Stage 1-2
  73004D1C 0000
  33004D1C 0001
• Stage 1-3
  73004D1C 0000
  33004D1C 0002
• Stage 1-4
  73004D1C 0000
  33004D1C 0003
• Stage 1-5
  73004D1C 0000
  33004D1C 0004
• Stage 2-1
  73004D1C 0000
  33004D1C 0005
• Stage 2-2
  73004D1C 0000
  33004D1C 0006
• Stage 2-3
  73004D1C 0000
  33004D1C 0007
• Stage 2-4
  73004D1C 0000
  33004D1C 0008
• Stage 2-5
  73004D1C 0000
  33004D1C 0009
• Stage 2-6
  73004D1C 0000
  33004D1C 000A
• Stage 3-1
  73004D1C 0000
  33004D1C 000B
• Stage 3-2
  73004D1C 0000
  33004D1C 000C
• Stage 3-3
  73004D1C 0000
  33004D1C 000D
• Stage 3-4
  73004D1C 0000
  33004D1C 000E
• Stage 4-1
  73004D1C 0000
  33004D1C 000F
• Stage 4-2
  73004D1C 0000
  33004D1C 0010
• Stage 4-3
  73004D1C 0000
  33004D1C 0011
• Stage 4-4
  73004D1C 0000
  33004D1C 0012
• Stage 4-5
  73004D1C 0000
  33004D1C 0013
• Stage 4-6
  73004D1C 0000
  33004D1C 0014
• Stage 5-1
  73004D1C 0000
  33004D1C 0015
• Stage 5-2
  73004D1C 0000
  33004D1C 0016
• Stage 5-3
  73004D1C 0000
  33004D1C 0017
• Stage 5-4
  73004D1C 0000
  33004D1C 0018
• Stage 5-5
  73004D1C 0000
  33004D1C 0019
• Stage 6-1
  73004D1C 0000
  33004D1C 001A
• Stage 6-2
  73004D1C 0000
  33004D1C 001B
• Stage 6-3
  73004D1C 0000
  33004D1C 001C
• Stage 6-4
  73004D1C 0000
  33004D1C 001D
• Stage 7-1
  73004D1C 0000
  33004D1C 001E
• Stage 7-2
  73004D1C 0000
  33004D1C 001F
• Stage 7-3
  73004D1C 0000
  33004D1C 0020
• Stage 7-4
  73004D1C 0000
  33004D1C 0021
• Stage 7-5
  73004D1C 0000
  33004D1C 0022
• Stage 8-1
  73004D1C 0000
  33004D1C 0023
• Stage 8-2
  73004D1C 0000
  33004D1C 0024
• Stage 8-3
  73004D1C 0000
  33004D1C 0025
• Stage 8-4
  73004D1C 0000
  33004D1C 0026
• Stage 8-5
  73004D1C 0000
  33004D1C 0027
• Stage 8-6
  73004D1C 0000
  33004D1C 0028
• Stage 8-7
  73004D1C 0000
  33004D1C 0029
• Stage 8-8
  73004D1C 0000
  33004D1C 002A
• Stage 8-9
  73004D1C 0000
  33004D1C 002B
• Stage 8-10
  73004D1C 0000
  33004D1C 002C
• Stage 8-11
  73004D1C 0000
  33004D1C 002D
• Stage 8-12
  73004D1C 0000
  33004D1C 002E
• Bonus Stage
  73004D1C 0000
  33004D1C 0030