Aerial Defense

Aerial Defense is a shoot-em-up arcade game.  Aircraft fly overhead and drop bombs and paratroopers.  It's your job to shoot them down.  The game ends when you base health drop to 0%.  You will advance to the next level when all the aircraft have been destroyed.

Aircraft

Aircraft will fly over head and drop bombs and paratroopers.  The only way to shoot down an aircraft is with a rocket or nuke.  When you destroy an aircraft a First Aid pack will drop.  If you destroy it you will gain 10 ammo units and add 20% health to your base.

Note that starting with level 10 the aircraft will start arriving from the right side of the screen as well.  This means you will have bombs coming from both directions.

Paratroopers

Paratroopers drop to the ground. The higher the level the more that drop.  Hitting one in flight will get you 100+ points.  If it hits the ground you loose 50 points.  To shoot a paratrooper tap the stylus on the screen where you want your bullet to go.  If you hold the stylus down your gun will auto fire. Remember you need to lead your target in order to hit it.   The paratroopers will free fall further with each level. This will make them harder to hit at higher levels.

Once a paratrooper hits the ground it will run to your base and attempt to destroy it.  It it makes to the front door you suffer 10% damage to your base.  25% of the troopers who hit the ground will attempt to escape.  If they escape they will gain access to a tank and return to attack your base.  If there are no tanks available they paratrooper will run to the opposite side and attempt to locate a tank there.

To destroy a running paratrooper click the ground and you will fire a mortar.   A mortar has splash damage so you don't have to have a direct hit to destroy a paratrooper.   Note that the mortar will not auto fire.

Again you will have to lead your target.

Tanks

When a paratrooper escapes it will try to locate a tank.  If it does it will return to destroy your base.  It will take 5 shots from you your mortar to destroy the tank.  Once destroyed you will receive health points for your base.  The amount of health you receive will depend upon your level.  A tank will do 5 points of damage with each hit on your base.

Tanks will not appear until level 10.  A maximum of 1 tank per 10 levels will appear.  For instance at level 20 you may face 2 tanks at once.

Bombs

A plane will drop a bomb once each pass.  If a bomb hits your base it will do 110 points of damage.  If you don't have any health reserves the game will end..

Shoot bombs with bullets.  You get 200+ points if you hit it.  When a bullet hits the ground it will kill any paratroopers it hits.  Bombs will only drop on levels 3 and above.  The number of bombs that will drop are determined by the level.

Rockets

Rockets are your main weapon against aircraft.  You gain 1 rocket for each 10 paratroopers you destroy.

This display shows how many paratroopers you currently have toward your next rocket.

To launch a rocket simply tap the rocket display zone

Rockets shoot strait up so you will need to lead your target when you fire.

Note that at levels 1 and 2 you will get 1 rocket for each 5 paratroopers that you destroy.

Nukes

Nukes are your most powerful weapon.  When a nuke is launched it will destroy every thing on the screen when it reaches the top of the screen.

You gain 1 nuke for each 100 bombs you shoot down.

To launch a nuke simply click the nuke display zone.  You may not launch a nuke until level 5.

Status Display

Along with the Rockets and Nukes Zones the lower display will show you the following information.

	This is the number of aircraft you have to destroy before you advance to the next level.  Each level will add one more aircraft to the total you must destroy
	This is your total available ammo.  You will get 5 units for each bomb and 5 units for each paratrooper you destroy.  You also get 10 when you destroy and aid package.  The ammo gets reset to 20 at the start of each level.  Ammo refers to your bullets and your mortars.  You may accumulate up to 999 ammo units.
	This is your current level.  The demo only allows 3 levels.  There is no limit to the levels in the registered version.
	This is your total score for the game.
	This is the health of your base.  The only way to gain health is to destroy a first aid package or tank.  You may gain up to 150% health.  Note if you have over 110% health you will survive a bomb hit.

Pausing the Game

Any time you load a Total Score form or register form the game will pause.  The help system will also pause the game.

You can pause the game clicking the Status Display zone.

Click it again to un-pause the game.  You can also un-pause the game by clicking the main display.

Saving the Game

You can save the game any time you wish. (Registered version only)

All your stats are saved and once restored the game screen is cleared and restarted at your current level and stats.

Game Speed

You can make minor variations to the game speed with the Delay Options in the Settings Menu.  The lower the delay the faster the game.

The game works ok on a 200Mhz machine but runs smoother the faster the processor.  The game is only supported on Windows Mobile 2002 and 2003 machines with .Net Compact framework installed.  If you have any doubts about your Pocket PC speed or Processor download the game and try it out.  Note that on slow machines you can gain performance by turning off the sound.  We have personally played the game up to level 45 on a 200Mhz machine with the sound turned on with no problems.

Game Scoring

Each target has a base value when hit but you will be awarded a level bonus when you destroy a target.  For instance the paratrooper has a base of 100 point but you will get 2 extra points for each level.

If a bomb hits your base you will loose points.  You will also loose points if a paratrooper makes it to your base and does damage.  Shells from the tanks will also cause you to loose points.

Each bullet you shoot you loose a point and 2 for each mortar shot.

When you complete a level by destroying all the aircraft you will be given a level bonus of 5000 points for each level.

Game Strategy

Watch your ammo.  Be very careful at the start of each level until you build it up.  When shooting a target lead it off and fire a barrage of 3 to 5 shots.

Build up your rockets until you are ready to end the level.  This allows you to gain more points.  More aircraft equates to more paratroopers and bombs which also means more points.  Use the rockets to bring aircraft numbers down to manageable levels.

Save your nukes.  While rockets are lost at each level nukes are not.  Keep one in reserve if emergency situations.

Before shooting a rocket or nuke fire several bullets at various directions.  This will help you destroy the first aid packages when they are released.

After level 10 allow one of the paratroopers to escape.  Destroy the tank quickly and you will gain more health then you loose.  Tanks are the best way to build up your base health.

Pause and save your games frequently and start out with a slower game speed.

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