A bug in poker is a limited form of wild 0️⃣ card. One or both jokers are often added to the deck and played as bugs.

In draw poker played for high 0️⃣ and pai gow poker, the bug is considered to be an ace, unless it can be used as a missing 0️⃣ card to complete a straight or a flush, in which case it becomes the highest[1] card which can complete the 0️⃣ hand.

K-K-Joker-5-2 is a pair of kings with an ace kicker.

is a pair of kings with an ace kicker. A-A-Joker-9-4 is 0️⃣ three aces.