Megaman Battle Network 3 - best
Megaman Battle Network 4 - worst
What happened? - major art reboot hampered the strict yearly release schedule Capcom put it on, so there was no time to make an actual game.
@catgirl don't forget "they liked the tournament in the last game so let's just make this one giant randomized tournament arc"
@DarkWitchClaire I think that's how they cut corner. Entire game is padding trying desperately to pretend it isn't. And the overarching plot villain is a cheap tie-in from another videogame entirely.