The erm....unique style of the WarioWare games has always led to odd experiences, but Gamespot is reporting a strange bug that essentially means certain Warioware DS mini-games are uncompletable
if you attempt to play the game on a DS from a specific batch of handhelds. Most DSs are unaffected. From the article: "Ma-me Denkyuu (Miniature Light Bulb) - The player is supposed to draw cords to connect a light bulb to a battery, but the cords can't be drawn. Douka-sen (Fuse) - The player is supposed to draw a fuse between a bomb to a fire source, but the fuse can't be drawn. Kurai Heya (Dark Room) - The player is supposed to find a man hiding in a dark room by shining him with a flashlight for a certain amount of time, but the flashlight keeps blinking and the game can't be completed. "