The challenge was: 1. Player makes the rocket ship go up and down with the arrow keys. The ship cannot go left or right. 2. Player can fire a shot with the space bar. The shot travels from left to right in a straight line. 3. The robot appears on the right side of the screen and zig-zags towards the rocket, shooting shots one after the other. The robot always moves steadily right to left, but randomly zig-zags up and down and changes speed as it moves left. 4. If the rocket’s shot hits the robot, the score goes up by one and the robot is destroyed. It will start again on the right side of the screen a few seconds later (whatever seems to make sense) 5. If the robot’s shot hits the rocket, the rocket is destroyed and the player loses one life. 6. If the robot hits the rocket, both the rocket and the robot are destroyed. The score goes up by one and the player loses one life. 7. When the player loses all lives the game is over. 8. The robot and rocket should have a short animation when they are destroyed. 9. The shots should disappear when they hit something, since ya know they got destroyed 10. The robot and rocket should not be able to shoot after they’ve been destroyed. They can shoot again when the shooter (robot or rocket) comes back to life. 11. The rocket should not come back to life until the robot is at the far edge of the screen, otherwise it could get destroyed again with no chance for self-defense.
