Galgaga is a fast game where you have to shoot all these bugs before they shoot you. There is a double missile and a shield power up but mainly you have a gun capable of shooting 2 missiles in about 5 seconds then waiting about 10 second to be able to shoot again. If your ship gets hit by the killer bugs (with rockets) you will lose a life unless you have a shield then it will take some damage instead and eventually disappear. Be careful not to get caught in the path of a row of the bugs even with a shield, as it will disappear before all the bugs die on collision with it.
