Pleiades

The cabinet artwork spells the name as “Pleiades” but the game has it spelled “Pleiads”. The name itself is from Greek mythology, of which there are several different spellings (Pleiads, Pleiades, Peleiades).

On the second round, shoot all but one alien. Move the ship to the far left. Wait for the alien to be in a firing line, and then shoot. Its bullets will now go through you as long as you keep him in that position. You can quickly dart left and right, shooting it to death, racking up points very quickly. After about three minutes of this, the alien becomes highly annoyed and will hover right below you, and do all kind of crazy moves!

BUG: When the final alien is killed on the very first wave, the game says that you will be rewarded x amount of points, but this bonus is never added to your score.