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Galaga (Namco)

| 1981

Release type:
Units produced: Namco
Controls/Input Device: Control(joy8way), Buttons(1)
Number of Players: 2
More Creator:
More Coder/Software:
License from/Copyright:
SoundMix: Mono
More Graphics/Artwork:
More Music/Sound:
Acting Talent involved:
More Machine Details:
More System Details:
Game Awards Nominations:
Game Awards Won:
Title a.k.a.:
Avg. Playtime:
MAME folder name: galaga

Display: raster 288x224 @ 60.61Hz (60.61 pixclock)
Sound: 1 channels

Emulated in MAME via driver galaga.c:
Status: imperfect; Emulation: good
Graphic: imperfect; Sound: good; Color: good
Palette size: 576; Savestate: supported

51xx.bin with 1024kb
sha1:50de79e0d6a76bda95ffb02fcce369a79e6abfec crc:c2f57ef8
54xx.bin with 1024kb
sha1:01bdf984a49e8d0cc8761b2cc162fd6434d5afbe crc:ee7357e0
gg1-10.4f with 4096kb
sha1:c340ed8c25e0979629a9a1730edc762bd72d0cff crc:dd6f1afc
gg1-11.4d with 4096kb
sha1:e697c180178cabd1d32483c5d8889a40633f7857 crc:ad447c80
gg1-1b.3p with 4096kb
sha1:ca7f5da42d4e76fd89bb0b35198a23c01462fbfe crc:ab036c9f
gg1-2b.3m with 4096kb
sha1:ab202aa259c3d332ef13dfb8fc8580ce2a5a253d crc:d9232240
gg1-3.2m with 4096kb
sha1:481f443aea3ed3504ec2f3a6bfcf3cd47e2f8f81 crc:753ce503
gg1-4b.2l with 4096kb
sha1:ddb8b121903646c320939c7d13f4aa4ebb130378 crc:499fcc76
gg1-5b.3f with 4096kb
sha1:e957a581463caac27bc37ca2e2a90f27e4f62b6f crc:bb5caae3
gg1-7b.2c with 4096kb
sha1:44c1a04fba3c7c826ff484185cb881b4b22e6657 crc:d016686b
gg1-9.4l with 4096kb
sha1:62f1279a784ab2f8218c4137c7accda00e6a3490 crc:58b2f47c
prom-1.1d with 256kb
sha1:085ada18c498fdb18ecedef0ea8fe9217edb7b46 crc:7a2815b4
prom-2.5c with 256kb
sha1:0c4d0bee858b97632411c440bea6948a74759746 crc:77245b66
prom-3.1c with 256kb
sha1:cdd4bc1013f5c11984fdc4fd10e2d2e27120c1e5 crc:4a04bb6b
prom-4.2n with 256kb
sha1:0281de86c236c88739297ff712e0a4f5c8bf8ab9 crc:59b6edab
prom-5.5n with 32kb
sha1:1a6dea13b4af155d9cb5b999a75d4f1eb9c71346 crc:54603c6b
Mameinfo.dat entry:
0.37b10 [Yochizo]


- 0.147u2: hap fixed clone Omega Fighter Special. The game fails to boot or finish post. After showing bad rom errors, the game resets.

- 0.147u1: Fixed maincpu rom loading.

- 0.122u7: Fixed gfx1/2/3/4/5 rom loading.

- 0.89u3: Changed Z80 CPU2 clock speed to 5MHz.

- 0.37b10: Yochizo added 'Omega Fighter' (UPL 1989) and clone Omega Fighter Special.

- 21st November 2000: Yochizo fixed some graphics bugs in the Omega Fighter / Atomic Robo-kid driver.

- 8th November 2000: Yochizo sent in a driver for Omega Fighter and Atomic Robo-kid.

- 25th April 1999: Dumped Omega Fighter Special.

LEVELS: 8 (restarts once)

Other Emulators:

* FB Alpha


* Raine

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Romset: 2016 kb / 8 files / 457.8 zip

Credits Mameinfo and Mametesters Project Robert J. Rabgno et al.
History.dat entry:
Galaga (c) 1981 Namco.

Galaga is a single-screen shoot-em-up in which the player controls a 'Fighter' spaceship and must defend the home planet against the on-coming hordes of alien invaders called "Galagans". The Fighter can only move left and right along the bottom of the screen.

Galagans fly onto the screen in a variety of formations before forming troop lines at the top of the screen. Once all troop lines are formed the Galagans separate and start attacking the player's Fighter in ones, twos and threes. The top-line Boss Galaga need to be shot twice before they are destroyed.

The Boss Galaga has a tractor beam that can capture the player's Fighter. A captured Fighter changes color from white to red and stays with that particular Boss until it is destroyed. The Fighter can be retrieved by destroying the Boss that captured it, but players must be careful not to destroy the captured Fighter itself, or that Fighter is lost. A rescued Fighter changes color back to white and links up with the player's current Fighter, doubling its fire power.

As players progress through each screen, the speed and number of alien attacks increases. Alien formations also become more complex, making the aliens harder to shoot.

Bonus Fighters are awarded periodically throughout the game, as players reach specific point values, as dictated by the 'Bonus Life' dip switch setting. Each enemy ship also has an assigned point value (see Scoring below).

The alien troop lines that form at the top of the screen are, from top to bottom: Boss Galaga (in one row of four), Butterflies (red/white bug ships, in two rows of eight, directly below the Boss Galaga), and Bees (blue/yellow bug ships, in two rows of ten, directly below the Butterflies).

In Stage 1, the enemies do not drop bombs as they fly onto the screen. However, they do so in most of the later stages.

From Stage 4 onwards, a squadron of special bonus enemies called "transforms" start appearing. They're called transforms because Bees will begin pulsating and move out of formation to change into these bonus enemies. They appear in the form of yellow scorpions in Stages 4, 5, and 6, green 'Spy Ships' from "Bosconian" in Stages 8, 9, and 10, and Galaxian Flagships in Stages 12, 13, and 14. After that, the three different transforms are repeated in the same order. Transforms are always worthwhile targets because they are not very aggressive and are worth more than the other enemies. If all three transforms are destroyed, extra bonus points will be awarded.

Galaga also features CHALLENGING STAGES, these consist of 40 Galagans that fly onto the screen in formations but do not drop any bombs. The object is to shoot as many of them as possible before they leave the play area. When an entire formation of eight Galagans is destroyed, bonus points are added to the player's score. If all 40 aliens are destroyed, players are awarded a special bonus of 10,000 points.

Two new gameplay features Galaga introduced are :
1) Players are given the chance to double their fire power.
2) The game has a rapid fire (automatic firing) option, whereby the player simply holds the FIRE button down and the space fighter continues to fire at the Galagan army in bursts of two missiles each.


[Upright model]
Game ID : GG

Main CPU : Zilog Z80 (x3), MB88xx
Sound Chips : Namco 3-channel WSG, discrete circuitry (for the ship explosion sound)

Palette colors : 32 (16 colors for tiles + 16 colors for sprites)

Players : 2
Control : 2-way joystick
Buttons : 1 (FIRE)


Galaga was released in September 1981 in Japan.

Although Galaga was a superior game, it didn't sell the large numbers that "Galaxian" did. One of the first games with a bonus stage.

The game 'rolls over' at 999,990 points. The 1P score counter is six digits, but the 2P counter is seven digits. Therefore, most good players start a 2-player game and play exclusively on the 2P side so their score won't 'roll over' at 999,990. After the 1,000,000 mark, new Fighters are no longer awarded.

What happens after finishing Stage 255 depends upon the skill level set in the DIP switches:
* On the easy skill, the game resets.
* On the medium skill, the game flips to "Stage 0" which plays as a strange cross between the 2nd Challenging Stage and a regular level where the enemies shoot. The game will advance to Stage 1 after completion, and the game will get easy again.
* On the hard skill setting, the words "Stage 0" stay on the screen forever. No more enemies ever appear. The player can continue to move the ship and fire, but there is no way to advance to the next level, or to die. To play again, the machine must be reset.
* On the hardest skill, the game flips to "Stage 0" which plays like Stage 1 (no extra enemies when flying onto the screen), but it is still as difficult as Stage 255. The game will advance to Stage 1 after completion, and the game will get easy again.

If you have more than seven extra Fighters, the marker for the screen will only show 7 1/2 (!) Fighters remaining. Additional extra Fighters will still be credited, even though they won't show on the screen.

In Japan, the Bees are referred to as 'Zako' and the Butterflies are referred to as 'Goei'.

Stephen Krogman holds the official record for this game with 15,999,990 points.

A Galaga unit appears in the 1983 movie 'WarGames', the 1983 movie 'Spring Break' (being played by one of the main characters), the 1984 movie 'The Karate Kid,' the 1987 movie 'Planes, Trains and Automobiles', and the sitcom 'Two and a Half Men', Season 5, Episode 2 (People Who Love Peepholes), and was shown in 2012 movie 'The Avengers' (a agent soldier was surprised playing in the Helicarrier computer).


Bee : 50 points in formation or 100 points in flight.
Butterfly : 80 points in formation or 160 points in flight.
Boss Galaga : 150 points in formation or 400 points in flight.
Boss Galaga : 800 points in flight with 1 wingman.
Boss Galaga : 1,600 points in flight with 2 wingmen.
Scorpions : 160 points each, 1,000 points for destroying all 3.
Bosconian Spy Ships : 160 points each, 2,000 points for destroying all 3.
Galaxian Flagships : 160 points each, 3,000 points for destroying all 3.
Captured fighter : 500 points in formation or 1000 points in flight.
Challenging Stage : 100 points per ship destroyed if less than 40.
Challenging Stage : 10,000 points for destroying all 40 ships (Perfect).
Challenging Stage : 1,000 points on the first two Challenging Stages, 1,500 points on the 3rd and 4th, 2,000 points on the 5th and 6th, and 3,000 points from the 7th onward for destroying a complete formation of 8 ships.


* Enemy Stop Shooting : on the first stage, kill everything but the two Bees in the bottom left corner. Then just wait, dodging the enemies' shots, until the enemy no longer drops any shots towards you. After the enemies stop firing, let them pass for two more trips and then kill them. For the rest of the game, the enemies will not drop shots. It will take approximately 15 minutes for the enemies to quit shooting at you, so this trick requires a lot of patience. Note : in a 2-player game, only one person has to do the cheat for both players to benefit. But as soon as one of the player's game is over the enemies begin shooting again.

* (BUG) Take The Control Of The Fighter For Free : during the Galaga demo, the Boss Galaga comes down and tries to tractor-beam the Fighter. As soon as that tractor-beam starts, the player can take control of the ship in the demo. The player has two choices here and this will effect how the game handles this bug : If the player allows himself to be captured, the demo will continue as normal and he has the option of controlling the player Fighter or not. The player can choose whether to save the captured Fighter, try to complete the level, etc. The demo mode will complete after 30 seconds and the high-score screen will appear. If the player takes control of the Fighter and destroys the Boss Galaga with the tractor beam, some of the characters on the screen will freeze while others are still moving and doing what they are suppose to be doing. This will last 15-20 seconds, then the game will go to the high score screen.

* Challenging stages are easier if the high score numbers are used to refine your aim. These tips assume a 6-digit high score :
1) On the first two challenging stages, aim your ships so that your left set of bullets falls between the second and third numbers in the high score list.
2) On subsequent challenging stages, aim one set of your bullets between the first and second numbers in the high score list (if the units come from the left) or between the last and next-to-last numbers (if the units come from the right). This will allow you to hit descending enemies at the highest possible point.

* Here is a neat (and useless) Galaga trick : It is possible to end the game with a 200% ratio. The 200% hit-miss ratio trick can only be done with your first shot of the game. When the game starts, don't move, and fire only one shot. If you time it correctly, two enemies will be killed at once. Let your remaining Fighters be destroyed, and presto : a better-than-perfect result.

* Easter Egg :
1) Enter service mode.
2) Keep B1 pressed and enter the following sequence : Right(x5), Left(x6), Right(x3), Left(x7). '(c) 1981 NAMCO LTD.' will be added at the bottom of the screen.


1. Galaxian (1979)
2. Galaga (1981)
3. Gaplus (1984) : also known in the USA as "Galaga 3"
4. Galaga '88 (1987)
5. Galaxian 3 Theatre 6 - Project Dragoon (1990)
6. Galaxian 3 Theatre 6 J2 - Attack Of The Zolgear (1994)
7. Galaga Arrangement (1995) : part of "Namco Classics Collection Vol.1"
8. Galaga - Destination Earth (2000, GBA, PC CD-ROM and PlayStation)
9. Galaga Arrangement (2005, PSP) : part of "Namco Museum Battle Collection"
10. Galaga Remix (2007, Wii) : part of "Namco Museum Remix"
11. Galaga Legions (2008, XBLA)
12. Galaga Legions DX (2010, PSN, XBLA)
13. Galaga 3D Impact (2011, Nintendo 3DS) : part of "Pac-Man & Galaga Dimensions"


Music by : Nobuyuki Ohnogi


NOTE : For ports released in North America, please see the Midway Upright Model entry.

* Consoles :
Sega SG-1000 [JP] (1983) "Sega Galaga [Model G-1022]"
Sega SG-1000 [TW] (198?) "Galaga [Model W-022]"
Nintendo Famicom [JP] (February 15, 1985) "Galaga [Model NGG-4500]"
Nintendo NES [EU] (1988) "Galaga [Model NES-AG]"
Nintendo Famicom Disk [JP] (June 22, 1990) "Galaga [Model NDS-GAG]"
Sony PlayStation [JP] (November 22, 1995) "Namco Museum Vol.1 [Model SLPS-00107]"
Philips CD-i [EU] (1996) "Arcade Classics [Model 810 0329]"
Sony PlayStation [AU] (1996) "Namco Museum Vol.1 [Model SCES-00243]"
Sony PlayStation [EU] (August 1996) "Namco Museum Vol.1 [Model SCES-00243]"
Sony PlayStation 2 [JP] (January 26, 2006) "Namco Museum Arcade Hits! [Model SLPS-25590]"
Microsoft XBOX [EU] (March 24, 2006) "Namco Museum - 50th Anniversary"
Sony PlayStation 2 [EU] (March 31, 2006) "Namco Museum - 50th Anniversary [Model SLES-53957]"
Nintendo GameCube [EU] (May 5, 2006) "Namco Museum - 50th Anniversary [Model DOL-G5NP-EUR]"
Microsoft XBOX 360 [XBLA] [EU] [JP] (July 26, 2006)
Sony PlayStation 3 [PSN] [JP] (January 29, 2009) "Namco Museum.comm [Model MPJB-00012]"
Microsoft XBOX 360 [XBLA] [EU] (May 15, 2009) "Namco Museum - Virtual Arcade"
Microsoft XBOX 360 [XBLA] [AU] (June 4, 2009) "Namco Museum - Virtual Arcade"
Microsoft XBOX 360 [XBLA] [JP] (November 5, 2009) "Namco Museum - Virtual Arcade [Model 2RD-00001]"
Nintendo Wii [Virtual Console Arcade] [JP] (November 24, 2009)
Sony PlayStation 3 [PSN] [EU] (April 1, 2010) "Namco Museum Essentials [Model NPEP-00104]"
Sony PlayStation 3 [PSN] [AU] (April 1, 2010) "Namco Museum Essentials"

* Handhelds :
Nintendo Game Boy [UK] (1995) "Arcade Classic No. 3 - Galaga & Galaxian [Model DMG-AGCP-UKV]"
Nintendo Game Boy [EU] (1995) "Arcade Classic No. 3 - Galaga & Galaxian [Model DMG-AGCP-NOE]"
Nintendo Game Boy [JP] (1995) "Galaga & Galaxian [Model DMG-AGCJ-JPN]"
Nintendo Game Boy [JP] (July 21, 1996) "Namco Gallery Vol.1 [Model DMG-ANGJ-JPN]"
Nintendo Game Boy Advance [JP] (December 7, 2001) "Namco Museum [Model AGB-ANMJ-JPN]"
Nintendo Game Boy Advance [EU] (December 7, 2001) "Namco Museum [Model AGB-ANMP-EUR]"
Sony PSP [JP] (February 24, 2005) "Namco Museum [Model ULJS-00012]"
Sony PSP [KO] (May 2, 2005) "Namco Museum [Model UCKS-45005]"
Sony PSP [EU] (December 9, 2005) "Namco Museum Battle Collection [Model UCES-00116]"
Nintendo Game Boy Advance [EU] (March 31, 2006) "Namco Museum - 50th Anniversary [Model AGB-B5NP-EUR]"
Nintendo DS [JP] (October 11, 2007) "Namco Museum DS [Model NTR-YNMJ-JPN]"
Nintendo DS [EU] (February 29, 2008) "Namco Museum DS [Model NTR-YNMP-EUR]"
Nintendo 3DS [JP] (June 23, 2011) "Pac-Man & Galaga Dimensions [Model CTR-APGJ-JPN]"
Nintendo 3DS [AU] (August 25, 2011) "Pac-Man & Galaga Dimensions [Model CTR-APGP-AUS]"
Nintendo 3DS [EU] (August 26, 2011) "Pac-Man & Galaga Dimensions [Model CTR-APGP-EUR]"

* Computers :
Commodore C64 [EU] (1982) Unlicensed
Casio PV-2000 [JP]
BBC B [EU] (1983) "Zalaga" by Aardvark
Acorn Electron [EU] (1984) "Zalaga" by Aardvark
MSX [JP] (1984)
NEC PC-9801 [JP] (April 1985)
Fujitsu FM-7 [JP] (1985)
Fujitsu FM-77 [JP] (1985)
Sharp MZ-700 [EU] "Galao"
Sharp MZ-1500 [EU]
Sharp X1 [JP]
Sharp MZ2500 [EU]
PC [MS Windows] [JP] (December 24, 1998) "Namco History Vol.4"
PC [MS Windows, CD-ROM] [AU] (March 27, 2006) "Namco Museum - 50th Anniversary"
PC [MS Windows, CD-ROM] [EU] (May 19, 2006) "Namco Museum - 50th Anniversary"

* Others :
Arcade [JP] (1995) "Namco Classics Collection Vol.1"


Edit this entry:

Licensed from Alexis Bousiges under a CC Attribution 3.0 License
cheat.dat entry:
00000000 9820 00000006 FFFFFFFF Infinite Lives
21800000 06E4 00000018 FFFFFFFF Invincibility
20800300 3C2D 000000FF FFFFFFFF Select Starting Stage Note the game crashes after Stage 255
20A10000 0185 003C21CD FFFFFFFF Select Starting Stage (2/7)
20B10000 3C21 FE98213A FFFFFFFF Select Starting Stage (3/7) 0185 CD 21 3C call $3C21 (changed from ld hl,$9821)
20B10000 3C25 21042800 FFFFFFFF Select Starting Stage (4/7) 3C21 3A 21 98 ld a,($9821) / 3C24 FE 00 cp $00
20B10000 3C29 3EC99821 FFFFFFFF Select Starting Stage (5/7) 3C26 28 04 jr z,$3C2C / 3C28 21 21 98 ld hl,$9821
20B10000 3C2E 18982132 FFFFFFFF Select Starting Stage (6/7) 3C2B C9 ret / 3C2C 3E xx ld a,$xx
20810000 3C32 000000F5 FFFFFFFF Select Starting Stage (7/7) 3C2E 32 21 98 ld ($9821),a / 3C31 18 F5 jr $3C28
21800000 070D 0000000D FFFFFFFF Fast Shoot
00000000 9288 00000028 FFFFFFFF Perfect Challenge Stages
00000000 9825 00000000 FFFFFFFF All Challenge Stages
00000000 9825 00000001 FFFFFFFF No Challenge Stages
00300000 9368 00000000 FFFFFFFF Aliens don't fire
00310000 936C 00000000 FFFFFFFF Aliens don't fire (2/2)
02100000 99B6 00000000 00001515 Auto Fire Turn it OFF on the Name Entry screen

Credit Pugsy's MAME Cheat file