| Special objects | Shoot these objects | ||||||
|---|---|---|---|---|---|---|---|
 | Energy - don't shoot this |  | Earth |  | Jupiter |  | Mars |
 | Shield - don't shoot this |  | Mercury |  | Neptune | Pluto | |
 | Death - shoot this or die |  | Saturn |  | Uranus |  | Venu s |
 | Explosion - Boom! | ||||||
The object of StarBase is to shoot incoming objects before theycollide with the base located in the center of the screen. The baseis equipped with a rotating cannon that can shoot lasers in fourdirections. This cannon can be moved using the `j' and`k' keys and fired using the `spacebar'. Firing thecannon uses precious energy. More energy can be obtained bypicking up energy objects. Objects that collide with the base causedamage to the base's shields. The game is over when the baseis hit and the shield level is zero. More shields can be obt ainedby picking up the shield objects.
Below is a table of all the objects you will encounter. Be sure toshoot that death object or it will destroy the base on impact.Good Luck!
| Special objects | Shoot these objects | ||||||
|---|---|---|---|---|---|---|---|
| Energy - don't shoot this | | Earth | | Jupiter | | Mars |
| Shield - don't shoot this | | Mercury | | Neptune | Pluto | |
| Death - shoot this or die | | Saturn | | Uranus | | Venu s |
| Explosion - Boom! | ||||||