public void keyReleased(KeyEvent e) {
		int keyCode = e.getKeyCode();
		switch (keyCode) {
			case KeyEvent.VK_LEFT :	 left = 	false; break;
			case KeyEvent.VK_RIGHT : right = 	false; break;
	        case KeyEvent.VK_UP :    up =       false; break;
	        case KeyEvent.VK_DOWN :  down =     false; break;
			case KeyEvent.VK_X :     jump = 	false; break;
			case KeyEvent.VK_Z :     lift =     false; break;
			case KeyEvent.VK_PLUS :  cheat =    false; break;
		}
	}