A and D to move, space to shoot. use the difficulty slider to change how often eggs spawn. lower is harder. if you touch an egg, you're dead.
cloning works much like how classes work in java. copies of a class or sprite can be made; each copy has its own information(like position). as many or as few copies can be made as you like. it would be extremely inefficient to copy the same code repeatedly to make multiple of a thing. an example of this is the enemies in video games. all goombas (those little brown things in Mario) use the same outline, but each appears in a different place on the map and act like separate things.
