Karen's only notable apperance, outside of cameos was in the before mentioned episode "Lego Batman - Robin Gets Jealous", where she is announced as Batman's girlfriend, angering a jealous Robin. Robin then tries to kill her by removing a step in a long spiral staircase, but she survived. Then, Robin tried to electrocute her with a malfunctioning electrical trap, which ended up backfiring and injuring Robin instead. Then, Robin took to more drastic measures by assaulting wielding a chainsaw, but missed, instead cutting the chair Karen was sitting in while reading a book. Then, Robin chased her outside when Karen managed to plant a stealth kick in Robin's "birdie balls". She then fled in her car (Two-Face's car for some reason), and Batman saved her and killed Robin, then walking away in the sunset.