The third game in Level-5's brain teaser series, Professor Layton and the Unwound Future takes the Professor's adventures into the fourth dimension after he and his apprentice Luke receive a strange letter from ten years in the future. Gamers then guide the duo through more than 165 math, science, logic, and visual puzzles, winding their way through a time-hopping mystery that threatens to destroy London. Hand-drawn cinematics help advance the game's plot, and the enhanced Memo Pad lets players use the touch screen to work out math problems and take notes using "pens" of different colors and widths. Online gamers have the added bonus of using Nintendo's wireless network to download one new puzzle for the first 30 weeks after the game is released.