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Thought you'd given up. I haven't figured out why, but if you add a print statement to the Game.tick() method, something like:
public void tick(boolean[] key)
{
time++;
boolean forward =...

Let's trade places . . .

If someone handed you this mass of code and said "Things don't move when they're supposed to. Help me fix it." What would you say? At a minimum, you'd probably say,...

How are these parts wired together? Where is the class with the main() method that gets the ball rolling?