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→When Your Child Misses a Problem
If the number displayed on the laser cannon is not the correct answer to a ship's problem, firing the cannon at that ship scores a miss. A ship that is fired upon and missed advances out of turn. Any alien ship that is not equalized before it reaches the cannon range at the bottom of the screen destroys the laser cannon. When this happens, the laser cannon explodes into an ominous, grey cloud. If alien ships destroy three laser cannons before the game's time limit has expired, the game is over.
====Options Available in Alien Addition====
When your child selects Alien Addition, the DLM title and copyright screens appear, followed by an instruction screen which says PRESS ANY KEY TO PLAY. When this instruction screen appears, your child has two choices. One choice is to begin a preset game. Pressing any key on the computer keyboard begins a game at a skill level of 7 with addition problems using numbers from 0 to 9. This preset game lasts for two minutes and is played on the keyboard.
A second choice is to alter these preset options to fit your child's individual learning needs or preferences by pressing '''AID'''. For example, your child may want to play the game for a longer period of time or to use the Wired Remote Controllers (joysticks) rather than the keyboard. (For details on changing program options, see "How to Select Options.")
''Note'': The preset game is intended to challenge your child to discover existing skills and knowledge. Some children may want to continue to play using the options designated in the preset game, and other children may want to adjust the game options. Help your child determine what options are appropriate by watching him or her play the first game.
====Game Options====
Skill Level (1-9): the speed at which the game is run. The slowest speed is 1, and the fastest is 9.
Problem Range (3, 6, 9): the numbers used in the addition problems. For problems using numbers from Oto 3, press 3. Press 6 for problems using numbers from Oto 6, and press 9 for numbers from 0 to 9. Run Time (1-5): the length of time of the game. Games can run from 1 to 5 minutes.
Joystick Control (Y /N): the use of the keyboard or of the optional joysticks (Wired Remote Controllers) to play the game. Press v for Yes if your child wishes to use joysticks. (See page 10 for the way in which game play is altered when joysticks are used.) To play using the keyboard, no change is necessary because the preset game uses the keyboard and N is already recorded on the screen.
''Note'': The '''ALPHA LOCK''' must be in the OFF position (up) when joysticks are used.
