As the player eliminates each wave of 55 aliens, the next wave begins lower than the one previous.

A contract is a bargain that is legally binding.

She spent some serious coin on that car!

Before was never made, But when of old the sons of morning sung, While the Creator Great His constellations set, And the well-ballanc’t world on hinges hung, And cast the dark foundations deep, And bid the weltring waves their oozy channel keep.