Space Invaders 90
From Sega Retro
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| Space Invaders 90 | ||||||||||||||||||||
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| System(s): Sega Mega Drive | ||||||||||||||||||||
| Publisher: Taito | ||||||||||||||||||||
| Developer: Taito | ||||||||||||||||||||
| Genre: Shooting[1] | ||||||||||||||||||||
| Number of players: 1 | ||||||||||||||||||||
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Space Invaders 90 (スペースインベーダー９０) is an update to Taito's classic arcade game Space Invaders, released for the Sega Mega Drive in 1990.
Contents
Story
Fearsome alien invaders have suddenly appeared over Earth. The invasion stretches to the Milky Way and the far reaches of the universe.
Gameplay
The game is a fixed shooter game. Rather than controlling a movable laser cannon protected by four stationary bunkers, as in the original game, the player controls a starship with multiple hit points. The ship moves horizontally and fires on rows of alien invaders, which move left and right as a group, changing direction and shifting downward when they reach a screen edge. The goal is to eliminate all of the aliens by shooting them. The aliens occasionally fire at the player. Aliens in later rounds have more complex attack patterns and more advanced weapons. Each round consists of two battles; once the first wave of aliens is destroyed, a second wave appears. The last aliens of a wave move faster than the others.
The player's ship moves with 
and 
. It shoots its standard weapon with 
or 
. The standard weapon has unlimited ammunition, and it is shot directly upwards, though some rounds have uneven terrain that cause the ship to shoot at diagonal angles. It destroys enemies and also intercepts enemy fire. The player can obtain special weapons through items, which are fired with 
. These weapons have limited ammunition.
The ship has a shield that starts with five hit points but can gain as many as ten by collecting items. The number of hit points is carried over to the next round. The shield can be fully replenished by hitting the invader at the center of the formation at the start of a round. The ship is destroyed if it loses all of its hit points or if an invader reaches the bottom of the screen, and the player starts the round over again if there are extra ships left. The game ends if there are no extra ships remaining, but it can be continued if the player has credits remaining. The player earns an extra ship at 30,000, 60,000, 120,000, and 240,000 points.
Items
UFOs occasionally move quickly across the top of the screen. Shooting them down releases an item or sometimes awards bonus points. UFOs can also sometimes contain enemies.
Item effects are lost when the round ends or if the player's ship is destroyed.
Offensive
| Hyper Laser (H-LASER) | |
|---|---|
| Shoots a laser that, if it destroys an alien, also destroys all horizontally adjacent aliens. Lasts for 2 shots. | |
| Homing Bomb (H-BOMB) | |
| Fires a bomb that seeks out enemies automatically. The targeted enemy appears "locked on" with a crosshair around it. Lasts for 20 shots. | |
| Buster Laser (B-LASER) | |
| Fires a penetrating laser. Lasts until its energy runs out. | |
| Power Beam (P-BEAM) | |
| Shoots a wide beam that destroys all enemies in its path. Holding increases the width of the beam. Lasts until its energy runs out. Wider beams cost more energy. Taking damage while charging the beam costs energy but does not emit the beam.
| |
| Super Crusher (S-CRUSHER) | |
| Creates two mirror images that follow the ship and duplicate its fire. Lasts for 15 seconds. |
Defensive
| Speed Up (SPEED-UP) | |
|---|---|
| Doubles the movement speed of the ship. | |
| Recover Shield (RECOVER-S) | |
| Adds 2 hit points to the ship's shield. | |
| Time Stop (T-STOP) | |
| Stops the movement of the invaders for 10 seconds. | |
| Hyper Shield (H-SHIELD) | |
| Renders the ship invulnerable to enemy fire for 20 seconds. The ship is still vulnerable to homing devices and lasers. | |
| Psychic Shield (PSYCHIC-S) | |
| Renders the ship invulnerable to all attacks for 20 seconds. |
Rounds
Versions
Localised names
| Language | Localised Name | English Translation |
|---|---|---|
| English (US) | Space Invaders '91 | Space Invaders '91 |
| Japanese | スペースインベーダー９０ | Space Invaders 90 |
| Portuguese (Brazil) | Space Invaders | Space Invaders |
Due to the delay in bringing the game to North America, the game was retitled Space Invaders '91 for this region. In Brazil, the wait was even longer, so the game was simply labeled Space Invaders when it reached Brazilian shores. The game was not released in Europe.
Production credits
- Art Design: Yoshihiko Wakita, Keishi Itoh, Toru Kawaishi
- Character Design: Yoshihiko Wakita
- Program: Hideaki Tomioka
- Game Design: Yoshiharu Satou
- Special Thanks: The Other People
Exactly who "The Other People" are is unknown, however Noriyuki Iwadare of Cube created the sound driver (his standard "Cube/Noriyuki Iwadare" driver used in several other games, and in fact, this is the first game to use said driver).
Magazine articles
- Main article: Space Invaders 90/Magazine articles.
Promotional material
also published in:
Physical scans
| Sega Retro Average | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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62 |
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| Based on 15 reviews | |
| Mega Drive, JP |
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 Cover
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  Cart  Manual |
| Mega Drive, US |
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 Cover
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 Cart  Manual |
| Mega Drive, BR |
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 Cover
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Technical information
- Main article: Space Invaders 90/Technical information.
ROM dump status
| System | Hash | Size | Build Date | Source | Comments | |||||||||
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256kB | 1990-11 | Cartridge (US) | ||||||||||
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256kB | 1990-06 | Cartridge (JP) |
References
- ↑ 1.0 1.1 https://sega.jp/history/hard/megadrive/software_l.html (Wayback Machine: 2020-07-02 23:21)
- ↑ https://groups.google.com/g/rec.games.video/c/GDpfIzq1loM/m/DB6fWbCOaikJ
- ↑ File:Space Invaders 90 MD credits.pdf
- ↑ Mega Play, "May/June 1991" (US; 1991-0x-xx), page 7
- ↑ 1700 igr dlya Sega, "" (RU; 2001-xx-xx), page 218
- ↑ Famitsu, "" (JP; 1990-xx-xx), page 1
- ↑ Game Power, "Giugno 1992" (IT; 1992-0x-xx), page 62
- ↑ Games-X, "7th-13th June 1991" (UK; 1991-06-07), page 36
- ↑ Famicom Hisshoubon, "1990-18, 19 (1990-09-21, 10-05)" (JP; 1990-09-14), page 17
- ↑ Joystick, "Juillet/Août 1991" (FR; 1991-0x-xx), page 185
- ↑ Sega Mega Drive Advanced Gaming, "January 1993" (UK; 199x-xx-xx), page 94
- ↑ Mega Drive Fan, "December 1990" (JP; 1990-11-08), page 79
- ↑ Mega Play, "March/April 1991" (US; 1991-04-xx), page 43
- ↑ Power Play, "12/90" (DE; 1990-11-16), page 164
- ↑ Sega Power, "October 1991" (UK; 1991-09-05), page 54
- ↑ Sega Pro, "April 1993" (UK; 1993-03-11), page 67
- ↑ Sega Saturn Magazine, "September 1995" (JP; 1995-08-08), page 87
- ↑ Supergame, "Agosto 1992" (BR; 1992-08-xx), page 33
- ↑ Tricks 16 bit, "Tricks Sega Gold 800 igr" (RU; 1998-03-20), page 172
| Space Invaders 90 | |
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Main page | Comparisons | Hidden content | Magazine articles | Reception | Region coding | Technical information | |
| Space Invaders games for Sega systems |
|---|
| Space Invaders (1985) | Space Invaders '90 (1990) | Super Space Invaders (1992) | Space Invaders (1996) |
| Space Invaders (Dreamcast) (unreleased) |
| Space Invaders VIC Dual Clones |
| Alpha Fighter (19??) | Invinco (1979) | Space Attack (1979) | Super Space Attack (1979) |
