Game 7 is the two-player version. Shield turns blue. 150,000 Swirl returns to normal frequency but will remain in mid-air to hit you. Shield turns grey. 230,000 Swirl again triples in frequency and sometimes fires instantly.
Shield turns pink.
When you destroy the Qotile, or a Swirl, there will be an explosion, during which the Yar stays on the screen. Use this opportunity to make up your own victory dance. The Qotile continually changes colors. The color sequence is your cue to the appearance of a Swirl, and gives you warning to plan your attack and defense. If you fly over the Qotile as it changes to a Swirl, it will destroy you, so be careful.