jacob takes the cake

if (Greenfoot.isKeyDown("right"))
    {
        move(1);
    }

    if (Greenfoot.isKeyDown("left"))
    {
        move(-1);
    }

    if (Greenfoot.isKeyDown("up"))
    {
        turn(90);
        move(-1);
        turn(-90);
    }

    if (Greenfoot.isKeyDown("down"))
    {
        turn(-90);
        move(-1);
        turn(90);
    }