chill penguin and spark mandrill if you use shotgun ice against him!
The hardest boss is Sigma
Bushido is the easiest boss.
The final boss of Megaman Battle Network 4 is Duo. It does not matter which version you have. However, after defeating Duo, there are optional bosses.
I think the easiest boss is the goomba king
Taurus fire
false....via maverick effect- randy might be green out....bigger boss A- rick ross B- Kevin boss????? elaborate in maverick format
there are heart tanks or life tanks located in every boss stage, like in Chill penguin's stage, before you battle the machines that throw snow, there is the helicopter like machines that throw bombs there is a dashing point there and when you reach that place, destroy the second igloo-house by fire wave..... that's just one example.. you can search the net on where you can find these... hope i helped!
Suprisingly, Tabuu(the final boss)!
Defeat the robot masters with the megabuster.(Default weapon)
one.
Bandos is
A really strong blade and a super weak boss.