Being released in conjuntion with Battle Network 4: Blue Moon. Red Sun and Blue Moon have their own storylines, as well as different souls for Mega Man to fuse with, giving him different abilities in each game. A new wild card is the "dark chip," an easy way to get out of a pinch, but one that can result in crossing over to the dark side, disallowing some key Mega Man abilities. Get the Big Picture on E3 2004: More trailers, gameplay and interviews than you can shake a stick at!