Echoes is a bit like Asteroid's hyperactive, drug crazed brother displayed in
blur-o-vision and viewed through psychedelic sunglasses in a cheap nightclub.
The game consists of 10 levels with a new enemy introduced on each new level
(mini asteroid, small asteroid, large asteroid, XXL asteroid, comet, meteor
storm, asteroid belt, planet, black hole & sun). Each has different strengths
and weaknesses, and each requires different strategies. (in Games)