Try to destroy all the objects. The spaceship is controlled with the red and yellow buttons on the left. The green button shoots. On the right, you can shoot with the yellow button and activate a deflector shield with the red one. Additional bonus points will be awarded when the UFOs return to the formation. Beware of the birds. They are invincible when their wings are folded in. The mother ship can only be destroyed by shooting the alien in the centre.

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