Game:Playing Card

The Queen of Hearts appears alongside the Card Soldiers and Crank Tower as a boss battle in Wonderland.

Strategy
The Queen herself is very weak, as one hit knocks her upside-down, showing her knickers. Her attack is also weak as she swings her heart shaped fan which causes minor damage. She also taunts you after her attack leaving her open for a whack to the head. She, like the cards can only be knocked out.
 * Kingdom Hearts

The heart cards wield pole arms and should therefore be considered dangerous even when at a distance. The spade cards have axes and have a medium ranged overhead slash. Like the Queen, they cannot be killed, only knocked out. Therefore, your actual target is the Crank Tower.

Unlike most enemies, the Crank Tower has "endurance" instead of HP, meaning that it takes a set amount of hits to defeat it, and the strength of those hits do not matter. The gear handles have an endurance of 9, while the Tower itself has an endurance of 24. By landing strong combos on it, you can stun all of the Card Soldiers temporarily.

Start by knocking out all the Card Soldiers to give yourself time to attack the tower. Knocking out the Queen and the cards at the same time will lengthen the amount of time the card are K.O.ed. This will allow to complete several combos on the crank handles. One or two Card Soldier may wake up while attacking, but they will be quickly stunned by the combos on the Crank Tower. There are four handles you must destroy before you can begin attacking the tower.

Trivia

 * The Crank Tower is one of only eight enemies who do not have entries in Jiminy's Journal. The others are AntiSora, the Cave of Wonders Guardian, Chernabog, the Bit Sniper, Glut, Shadow Sora, and World of Chaos.