Marvel's Spider-Man 2 is off to a fantastic start already. The PlayStation-exclusive action adventure has sold over 2.5 million copies in its first 24 hours on sale. The tremendous milestone was revealed earlier today on the official PlayStation Twitter account.That makes Spider-Man 2 the fastest-selling PlayStation first-party game ever.The 2.5 million milestone represents copies sold through to consumers, so the number of units shipped is likely much higher. No matter which way you slice it, 2.5 million sales for a single-player game on a single platform in such a short window is worth celebrating. Read more