Lets see, i'll rank some bosses from BN1-4 just to see if we have a trend going here.these will be ordered with "1" being hardest and w/e the last number is as easiest.
MMBN1
1:B@ss(i think he was BN1 where you needed all the standard chips to fight him randomly in some area. donno what area though)
2:Shadowman(the ninja guy)
3: Pharoaman
4:LifeVirus
MMBN2
1: B@ss(....noticing anything yet?)
2:Protoman
3:Gospel/BugBeast
4:Mr. Match's new navi(looks like a lighter kinda)
5:Shadowman
MMBN3:
1:BassGX
2:Serenade
3:Japanman(the blue samurai one who gaurds Serenade)
4:Darkman
3:B@ss
4:Protoman
5:DrillMan
6:Alpha
7:Mr. Matchs new navi(no idea what this one was named. but he had the candles that healed him.)
MMBN4:RS:
1:Shademan(the one found in Undernet4 randomly)
2:Burnerman
3:Laserman
4:ThunderMan
5:Duo
MMBN4:BM:
1:Shademan(one in Under4)
2:B@ss
3:Junkman(annoying sunuva%^#&*)
4:Protoman
5:Duo
Notice how the final bosses are rarely harder, well for me atleast, than some normal bosses. The reason i included Bass in BlueMoon lineup is because Red Sun has better navis and giga chips than BlueMoon.So in BM B@ss is a b***h to kill, but in RS he aint too hard.And while im at it, who thinks that BM got screwed out of a awsome chip? they got DeltaRay edge wich is very good, yet, RS players get Dark aura....i think its either 200 or 300 point aura that REGENRATES! Lifeaura is the only one atainable for BM and a few viruses on S.Hard can take out a LifeAure(sadly).
[edit] wtf why cant i type in Bass's name without it censoring it XD