Just finished Megaman Battle Network 4 (Japanese), and all I can say is wow. Not wow at the game but at the ending.
SPOILER:
The main villian commits suicide, he jumps of a cliff right in front of Lan. Seriously, I thought this was a good step for MMBN to be taken as more of a teenager/fans of the original series game, but I fear it will be editted out for the US version, and if not that almost definitely the U.K.