Superhero

Superhero/Super-Villain
This secret rule is activated whenever a 9 is played. This rule will play out as follows:

If the player plays a red 9 (9 or hearts or diamonds), they will have to name a super-villain (that has not been named previously).

If the played plays a black 9 (9 of spades or clubs), they will have to name a superhero (that has not been name before).

Naming a non hero/villain, naming the wrong kind (swapping hero and villain), naming a previously stated character, or failing to follow the rule at all will result in a penalty card.