Starting Up
Turn off the POWER switch on your Nintendo Game Boy® System. Never insert or remove a Game Pak when the power is on.
Insert the Space Invaders Game Pak into the slot on the back of the Game Boy, label facing out. Press the Game Pak firmly to lock it in place. Turn the Game Boy POWER switch on.
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Note: Super Game Boy is not supported.
Controls
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Moves the Ship Left & Right across the playing field
Title Screen
The Title Screen will have three options: Play, Code and Options.
Up and Down on the Control Pad will select each option and START will confirm the selection.
Options Screen
The Option Screen will have four options: Credits, Skill, Sound and Done. Up and Down on the Control Pad will select each option.
Credits
When Credits is selected, Left and Right on the Control Pad will toggle between the number of continues the player can have during a game: 1-9.
Three is the default setting for the number of Credits and the player will have three lives per Credit.
Skill
When Skill is selected, Left and Right will toggle between the difficulties: EASY, NORMAL and HARD.
Skill affects the speed of the enemy fire. In Easy mode the enemy fire will be relatively slower than Normal mode and in Hard mode the enemy fire will be faster than Normal mode.
Normal mode is the default Skill setting.
Sound
When Sound is selected, Left and Right on the Control Pad will toggle between ON and OFF.
The default volume setting for Sound will be ON.
Code Screen
The Code Screen allows the player to begin the game after the last completed episode. When a new episode begins, a code reflecting the status of the game (lives, ship type, episode number, etc...) is displayed on screen.
This code can be entered in the code screen by using the Left/Right/Up/Down Buttons on the Control Pad. When the entire code is entered, press START to begin the game.
Select Ship Screen
The Select Ship Screen will consist of a header: "Select Your ship." Each ship will be displayed on screen one at a time along with the ship's name and statistics.
Left and Right on the Control Pad will scroll through the three available ships and the START or A Button will select the ship. When a ship is selected the game will start.
Defender
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Benefits from a blend of average speed and armor.
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Can maintain Weapon upgrades for six seconds.
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Shots move at a normal speed.
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Needs to collect one Armor pickup to fill all of the Armor Upgrade slots.
Stinger
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Benefits from exceptional speed
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Can maintain Weapon Upgrades for nine seconds.
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Moves slightly faster than the Defender.
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Shots move faster than the Defender's.
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Needs to collect two Armor pickups to fill all of the Armor Upgrade slots.
Juggernaut
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Benefits from exceptional armor.
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Can maintain Weapon Upgrades for three seconds.
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Moves slightly slower than the Defender.
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Shots move slower than the Defender's.
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Juggernaut begins the game with full armor slots.
Ship Upgrades
Armor Upgrades
If the player collects a shield pickup they can fill an armor slot and upgrade their armor.
When a ship's armor slots are full and the player collects an additional shield pickup, they will become invulnerable for a limited period of time.
Weapon Upgrades
Weapon upgrades are achieved when the player collects a weapon pick up. The duration of the upgrade will vary from three seconds to nine seconds depending on the Weapon handling of the ship.
Secondary Weapon
In addition to the upgrades there will also be a Secondary Weapon. The secondary weapon is a shield boost that, when activated, radiates a local shockwave on either side of the ship, to defend laterally.
This weapon is linked to the shield slots and can only be activated when the user has a full shield slot. The main function of the Secondary Weapon is to tackle lateral attacks from enemies. It will be activated by pressing the B Button.
Points System
Points are awarded for every alien that is destroyed and are listed for each enemy in the Enemy section of this document. For every 5000 points that the player achieves they will be rewarded with an extra life.