version is a variation of the Bunch of Fives game including bonus cards. In this variation, the deck should be composed of at least 15 cards per player. It is recommendable to use up to 20 cards, but both players must always have the same number of cards on their decks. The maximum number of bonus cards that may be taken on each deck is 2. The rules in Bonus Buster follow the same structure as Bunch of Fives, but two new steps are added after steps 2 and 3. After the second step, the first player can use a bonus card if he has one in his hand. The effect of the bonus card is applied immediately after using it. Then if the bonus card played by the first player allows it, the second player makes step 3 normally, and after it, he can also use another bonus card. It is not compulsory that the first player has used a bonus card so that the second player can use one. Once the bonus card has been used, it goes with the rest of cards out of play, and the player picks two cards from the top of his draw pile. Card sets In addition to the rare "test set" described above, six national release card sets were issued. The Exterminator set totals 275 cards and was issued on 20 September 2006. It covered the 2005 and 2006 series, plus the 2005 Christmas special The Christmas Invasion. The Annihilator set, comprises 100 cards, taken from the first two series and the 2006 Christmas special The Runaway Bride. This set was released on 21 February 2007. A Daleks vs Cybermen special was released 16 May 2007. This special came with a set of 18 cards, including 16 common cards and one of four variants of both a Dalek and Cyberman rare, making the full set 24 cards, and not the 18 that are usually found advertised as a full set. The Invader set, released on 5 September 2007 consists of 225 cards from the 2007 series. The Ultimate Monsters set was released on 5 March 2008. This 225 card set is primarily sourced from the "Classic Series" of Doctor Who that ran from 1963 to 1989. Other cards came from the 2007 Christmas special Voyage of the Damned as well as the first three series of the revamped show. The most