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Astro Blaster (version 1)

  1. Game infos
  2. Parent and Clones
  3. Sound
  4. Driver
  5. Inputs
  6. Controls
  7. Display
  8. Dipswitchs
  9. Roms list
  10. Chips list
  11. Samples list
  12. Categories
  13. History
Download astrob1.zip (0 B)
Snapshot

Game infos

Description Astro Blaster (version 1)
Name astrob1
Manufacturer Sega
Year 1981
Runnable yes
System arcade /
Number of players 2P alt
Added to MAME .030
Romset size 0 B
Romset file files
Romset zip 0 B
Language English
Genre Shooter

Parent and clones

Parent astrob : Astro Blaster (version 3) (1981)

Sound infos

Sound_channels 1

Driver infos

Driver status preliminary
Driver emulation preliminary
Driver color good
Driver sound imperfect
Driver graphic good
Driver cocktail
Driver protection
Driver savestate yes

Inputs infos

Input service yes
Input tilt no
Input players 2
Input buttons
Input coins 2

Controls infos

type ways minimum maximum sensitivity keydelta reverse
joy 2 no

Display infos

type rotate flipx width height refresh pixclock htotal hbend hbstart vtotal vbend vbstart
raster 270 no 256 224 59.998138 5156000 328 0 256 262 0 224

Dipswitchs

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade 808b.speech-u7 2048 5988c767 808b.speech-u7 3b91a8cd46aa7e714028cc40f700fea32287afb1 audiocpu 0 good no
arcade 809a.speech-u6 2048 893f228d 809a.speech-u6 41c08210d322105f5446cfaa1258c194dd078a34 speech 0 good no
arcade 810.speech-u5 2048 ff0163c5 810.speech-u5 158a12f9bf01d25c7e98f34fce56df51d49e5a85 speech 800 good no
arcade 811.speech-u4 2048 219f3978 811.speech-u4 728edb9251f7cde237fa3b005971366a099c6342 speech 1000 good no
arcade 812a.speech-u3 2048 410ad0d2 812a.speech-u3 9b5f05bb64a6ecfe3543025a10c6ec67de797333 speech 1800 good no
arcade 829.cpu-u25 2048 5f66046e 6aa7f94122db1a75a89c12ad9d087aec1a70d675 maincpu 0 good no
arcade 837.prom-u1 2048 ce9c3763 2cb4c3041905d38b040ef76f69f6197d699f9ec5 maincpu 800 good no
arcade 838.prom-u2 2048 3557289e 57258b149f0872c34f82fe3dc06bc1fc60d7393f maincpu 1000 good no
arcade 839.prom-u3 2048 c88bda24 9253306bd929e04a2136a0d9a9627dab8979baa1 maincpu 1800 good no
arcade 840.prom-u4 2048 24c9fe23 306ad65c8c821ae90eb50416c38fe37c7acf36de maincpu 2000 good no
arcade 841.prom-u5 2048 f153c683 a6338a0e9867e1cbe27921182c268aeb4b09a503 maincpu 2800 good no
arcade 842.prom-u6 2048 4c5452b2 e7b1138379ba4ad29f5ffad275164716c37c92e9 maincpu 3000 good no
arcade 843.prom-u7 2048 673161a6 90db12ce06cd6150a924421cf9d93ad4051ccf97 maincpu 3800 good no
arcade 844.prom-u8 2048 6bfc59fd a5f7edfa66a25e3e84e60b5b3812d16ffdc5e409 maincpu 4000 good no
arcade 845.prom-u9 2048 018623f3 bf264921c36ced3c332d5627b80886c3463f2237 maincpu 4800 good no
arcade 846.prom-u10 2048 4d7c5fb3 3c0dd17cb907b8476abb4b2a16bd41dd2f107849 maincpu 5000 good no
arcade 847.prom-u11 2048 24d1d50a 0691cccc4e58ffa07308a6a3ae80fbcef6cc8c9b maincpu 5800 good no
arcade 848.prom-u12 2048 1c145541 73e23161f71f4c25405e1211f41a31323845efaa maincpu 6000 good no
arcade 849.prom-u13 2048 d378c169 9b30ff9741429d798c8a2146d1c76a223f05495c maincpu 6800 good no
arcade 850.prom-u14 2048 9da673ae 817fb7cbeedefa3b5b43ca3b7914289f6908ed53 maincpu 7000 good no
arcade 851.prom-u15 2048 3d4cf9f0 11e996f33f3a104e50d0a54a0814ea3e07735683 maincpu 7800 good no
arcade 852.prom-u16 2048 af88a97e fe7993101c629b296b5da05519b0990cc2b78286 maincpu 8000 good no

Chips list

name tag type clock
I8035 audiocpu cpu 3120000
SP0250 speech audio 3120000
Samples samples audio
Sega Speech Sound Board segaspeech audio
Speaker speaker audio
Z80 maincpu cpu 3867000

Samples list

name
asteroid
deedle
ebullet
eexplode
invadr1
invadr2
invadr3
invadr4
pbullet
pexplode
refuel
sonar
winvadr1
winvadr2
winvadr3
winvadr4

Categories

History


Arcade Video game published 38 years ago:

Astro Blaster (c) 1981 Sega.

Astro Blaster is a 1- or 2-player game in which players must advance through squadrons of alien ships in an attempt to dock with the mother ship. Players move their ship left or right and shoot at attacking squadrons. A special time warp allows the player to slow down the alien space ships and their laser fire, while maintaining his own ship and laser fire at normal speed.

As players go through the game play, each step is directed by the voice of mission control. Mission control keeps players informed of fuel status, provides a countdown on warp, keeps track of the number of ships remaining, and monitors the player's laser temperature.

As players enter each new sector they encounter a different number of alien squadrons. Players must destroy all ships in each squadron to pass through the sector. One squadron of rockets is extremely difficult to destroy, but players can pass through this squadron by hitting a few enemy ships. Once a player has destroyed all the squadrons in that sector, he enters an asteroid belt. He must maneuver and shoot his way through the asteroids to reach the mother ship. If fuel is critically low when the player enters the asteroid belt, he can receive extra fuel by shooting the red fireballs interspersed among the asteroids. After passing through the asteroid belt, the player's ship docks with the mother ship and refuels.

There are 29 different alien squadrons players encounter as they move through the different sectors. Every new sector increases in difficulty with different numbers of squadrons in each sector. Each alien ship has its own individualized sounds, movements and firing capability.

During their game, players must keep track of fuel consumption. As the player's ship moves through the sector, it consumes fuel. The player must ensure he has enough fuel to advance through the sector and dock with the mother ship. Extra fuel can only be obtained by shooting red fireballs or docking with the mother ship. The screen also displays the laser temperature. As players fire, the laser temperature rises. When they cease firing it cools down. If the laser overheats, players lose their laser fire until it cools down.

By depressing the warp button, players slow down the enemy ships and their laser fire while maintaining his own at normal speed. Players receive one warp per ships and are awarded one warp upon docking, if he has used his warp in the previous sector.

Each alien ship destroyed carries a different point value. Players also receive double points for destroying an alien ship when their fuel is in the red. To add further excitement, there are 25 tasks that a player performs during the course of the game and receives a secret bonus. Players do not know what these tasks are, but a good player will keep track. The 25 tasks are consistent throughout the game. Players also receive a bonus for any fuel they have left when they dock with the mother ship.

With a two-player game, players alternate at the conclusion of each sector, not after each ship. Players receive 3 to 5 ships, which is operator adjustable. The game is over when a player runs out of fuel, loses all his ships, or crashes while attempting to dock with the mother ship. The top three scores are displayed and the game ranks players from 1 to 99.

PLAY INSTRUCTIONS :
1. Shoot enemy space ships for points.
2. Shoot fire balls for extra fuel.
3. Use warp to slow down enemy ships and bombs (only once per sector or ship).
4. Discover how to earn secret bonuses for extra points.
5. Dock with mother ship to refuel after each sector.
6. Game over when you run out of ships or fuel.
7. Laser will not fire while overheated.

- TECHNICAL -

Sega G80 Raster hardware

Main CPU : Zilog Z80 (@ 3.867 Mhz), I8035 (@ 208 Khz)
Sound Chips : Discrete circuitry, SP0250 (@ 3.12 Mhz)

Screen orientation : Vertical
Video resolution : 224 x 256 pixels
Screen refresh : 60.00 Hz
Palette colors : 64

Players : 2
Buttons : 4 (LEFT, RIGHT, FIRE, WARP)

- TRIVIA -

Astro Blaster was released in March 1981.

Astro Blaster was one of the big contributions from Sega/Gremlin. Utilizing speech synthesis, the game attracted players by stating 'Fighter pilots needed in sector wars, play Astro Blaster'. During game play, the game gave you different advice such as 'Alert, alert, invaders in sector 1, player 1 to battle stations', 'Fuel status marginal', or 'Warp activated, 10, 9, 8,...' to name a few.

Astro Blaster wasn't the first game to introduce speech synthesis in a game, that honor goes to Taito's "Stratovox". Astro Blaster, though, challenged the player to go through seven sectors with a varying amount of waves within each sector. Astro Blaster was an extremely challenging game, it developed a solid following. It wasn't as popular as "Frogger", which was released later on, but it still had a solid showing and redefined how space shooters could be made more challenging. Other notable games released in this year were "Donkey Kong", "Galaga", "Vanguard", and "Wizard of Wor".

The bonuses in this game were actually bugs that would appear if certain events took place. Rather than 'fix' the bugs, Gary Shannon changed them to bonus 'features'.

Gus Pappas holds the official record for this game with 299,100 points on November 20, 1982.

In Sega's Dreamcast 1999 video game "Shenmue", an Astro Blaster cabinet can be seen in the YOU Arcade in Dobuita, but it has an 'out of order' label on it and is not playable. Its possible it was originally playable and had to be removed for some reason, but it is perhaps there simply for the sake of realism; Shenmue is set in 1986/87, so even then it would be considered an old game.

- UPDATES -

Three versions of Astro Blaster were released. The first version was deemed too difficult to play. Version 2 was released to remedy this situation and to be a little more descriptive in the games instructions. Version 3 was basically the EASY version of Astro Blaster. All 3 versions had some things in common :
1) All the different alien spacecraft were in all of the versions, it was just their order of appearance that made a difference.
2) The secret bonuses were common to all three versions. Just because a sector had different waves didn't mean the bonuses for specific events were changed.
3) Each had a high score table that held the 99 top scores.

It was easy to spot a version one machine. The instructions were displayed on the screen. When you inserted your money, you just had to press the 1- or 2-player button to start the game.

On versions 2 and 3, after you inserted your money, a blue screen came up and basically told you to press the 1- or 2-player button.. It also explained some of the rules while in attract mode. The order of the alien attackers is what determined version two and three.

- SCORING -

NOTE : During fuel status critical, everything in the game is double points.

AMOEBAS : 70 Points
BLUE&RED DISCS : 70 Points
BLUE&RED SPIRALS : 110 Points
BLUE&RED TRIANGLE : 100 Points
BLUE DIAMOND : 110 Points
BLUE DISC : 60 Points
BLUE OVALS : 120 Points
BLUE HEXAGON : 110 Points
BLUE UFO'S : 160/80 Points
BLUE X's : 90 Points
GALAXIANS : 70/110 Points
GREEN DOUBLE ARROWS : 90 Points
METEOR : 60 Points
ORANGE&PURPLE SPINNERS : 80/110 Points
ORANGE ARROWS : 100 Points
ORANGE CRYSTALS : 110 Points
ORANGE DART : 40/70 Points
ORANGE SAUCER : 50/100 Points
RED-RINGED GLOBES : 100 Points
RUBBER BANDS : 70 Points
WHITE BLOCK : 70 Points
WHITE BOATS : 90 Points
WHITE SQUARES : 100 Points
WHITE WINGS : 60 Points
YELLOW BIRD : 70 Points
YELLOW DOUBLE DIAMONDS : 80 Points

You also get 100 points per asteroid you take out at the end of the sector.
You also get a bonus for fuel remaining when you dock with the mother ship.

You get a bonus for fuel remaining when you dock with the mother ship, awarded at 10 points per pixel of fuel.

Secret Bonuses :
Number 01, bonus 2,000 points. Complete the asteroid field without missing any fireballs.
Number 03, bonus 1,000 points. Shoot all enemies without missing.
Number 04, bonus 700 points. Shoot all enemies before they wrap around to the other side of the screen, during waves that have the enemies that fly horizontally or diagonally.
Number 09, bonus 500, 700, 900, 1,000 or 1,500 points. Don't move at all when docking with the mother ship (1,000 points for a PERFECTLY centered approach, 1,500 points for 'the paint scraper', when you brush a docking clamp of the mother ship).
Number 12, bonus 700 points. Shoot all enemies before any escape the screen through the bottom (certain waves only).
Number 13, bonus 500 points. Shoot all enemies in proper order in sector 1.
Number 14, bonus 1,000 points. Shoot all enemies in proper order in sector 2.
Number 15, bonus 1,500 points. Shoot all enemies in proper order in sector 3.
Number 16, bonus 2,000 points. Shoot all enemies in proper order in sector 4.
Number 17, bonus 2,500 points. Shoot all enemies in proper order in sector 5.
Number 18, bonus 3,000 points. Shoot all enemies in proper order in sector 6.
Number 19, bonus 3,500 points. Shoot all enemies in proper order in sector 7.
Number 22, bonus 600 points. Never get laser temperature critical during the sector (awarded before docking).
Number 25, bonus 500 points. Not dying during the sector (awarded before docking).

- TIPS AND TRICKS -

* When you start the game, your star ship will be in the middle of the screen. The computer voice will state 'Alert, alert, invaders sector 1, player 1, battle stations'. With that, you are ready to rock and roll. Before you start your game, be sure of what version machine you are playing so you can get yourself prepared. Since each version alters the order of the aliens, it's not good to be prepared for one attack and a totally different attack comes along.

* Although the computer voice can be annoying at times, it also gives you very valuable information. This will actually help you to concentrate more on destroying aliens then constantly looking at your gauges. Some helpful things the voice will tell you are :
1) When your fuel status hits marginal and critical.
2) When your laser temperature is approaching critical.
3) The countdown after you activate warp.

* Fuel is a very precious commodity in this game. If you run out of fuel, your game is over regardless of how many star ships you have left. Learn how to maximize your fuel usage because in the later sectors that have a lot of waves, you will be running on empty. Some other fuel facts :
1) When you activate warp, only the enemies on the screen slow down. Your fuel supply continues to burn away in REAL time.
2) When fuel status marginal is announced, you have approximately 25 seconds of fuel remaining.
3) When fuel status critical is announced, you have approximately 8 seconds of fuel remaining.
4) Shooting the fireballs in the asteroid wave will get you 3 more seconds of fuel.
5) You score double points during fuel status critical.
6) At the end of each sector, you will be re-fueled when you dock with the mothership.
7) Losing a star ship doesn't replenish your fuel supply.

* The warp button can be a blessing or a curse depending on how you use it. You only get one warp per sector or one per star ship. This works fine on the lower sectors that only have a few waves. On the higher sectors, though, you must plan (if possible) the best place to utilize it. Some tips :
1) If it is used on an enemy that goes across the screen, wait until they are halfway across before activating the warp. This way, you can get them all before your warp time runs out.
2) If used on the diagonal flying aliens, again, wait until a lot of them are out before activating.
3) For other aliens, make sure they are mostly on the screen. Sometimes, these aliens disappear off screen and if you activated your warp too early, it will be wasted while they hang around outside of the playing area.

* There are no safe places in this game so you must always be on the look out for not only the aliens dropping on you, but also their laser fire.

* Speaking of laser fire, your ship is equipped with a powerful laser cannon. There is no limit to the amount of shots you can fire, but there is a catch. The cannon heats up with each shot fired. It will overheat if you fire too many shots too quickly, and you will have to wait about eight seconds for it to cool off before you can fire it again. Some ways to prevent overheating :
1) Make your shots count. Don't hold down the fire button to take out the aliens. Shoot to kill, not to warn.
2) If you must do multiple shots, do it in short bursts. Your laser heats up much faster then it cools down.
3) If you do overheat, just avoid the aliens and their fire until your laser is operational again.

* Docking is the easiest way to get a lot of points. You need to set yourself up after the last of the asteroids in order to get those points. Moving your ship during docking procedures will prevent you from getting any docking bonus. The most points are from the 'Paint Scraper' method : Line up your left engine over the C in SECTOR. It will look like you will collide with the left docking arm but you will barely squeeze by. Thus, you now have 1,500 points.

* Also, if you destroy your star ship during docking, your game will be over regardless of the number of men you have left.

* Always expect the unexpected in this game. Sometimes the aliens will do things or make moves you haven't seen before. The best way to counter this is to always be on guard.

* After sector seven, the sectors repeat again. Also, the score 'rolls over' at 99,990. Many players will intentionally get themselves killed when they get close to this score in order to claim the number one position on the board.

- STAFF -

Designed & programmed by : Gary Shannon, Barbara Michalec

- PORTS -

* HANDHELDS:
[US] Sony PSP (nov.16, 2006) as an unlockable extra in "Sega Genesis Collection [Model ULUS-10192]"
[EU] Sony PSP (feb.2, 2007) as an unlockable extra in "Sega Mega Drive Collection [Model ULES-00556]"
[AU] Sony PSP (feb.8, 2007) as an unlockable extra in "Sega Mega Drive Collection [Model ULES-00556]"

- CONTRIBUTE -

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