Nintendo has admitted responsibility for a 'red tulip plague' that has affected many US gamers' experience of playing Animal Crossing: Wild World on DS.
Wild World - currently enjoying significant success in the US - puts gamers in the boots of a cartoon dude inhabiting a small animal village and passing time collecting and trading items to decorate their virtual homes and gardens.
Unfortunately, many gamers have recently furnished their houses with a certain type of red tulip that has just refused to go away.
The red tulips in question were found by gamers attached to a blank letter that appeared in their mailboxes when they disconnected from WiFi. The flower causes no problems when planted outside but, as soon as it is placed on the living room floor of a gamer's house, the bloom can't be removed and the spot is rendered useless.