Why change it so much?
The game has kept the 2D world with the few areas which you can get to by bus etc etc. The sound is also the same style.
The battle system I can't stand. You view MegaMan from the back and he can move right or left (with 3 coloumns, that's not a lot of freedom). Certain attacks allow you to take a few steps forward but it's VERY limited. Why change the old 6x3 grid? The battle graphics are horrible.
The story is unimaginative. Not entirely bad, there are some good aspects, but it's hardly a RPG-worthy story.
If you're after some MegaMan action on DS, pick up ZX or ZX Advent. Great titles, if a little hard. Let's hope StarForce 2 is better than the original.
GRAPHICS 5/10
Sprite-based world and bad 3D battles.
SOUND 5/10
Can be repetitive in some places but some catchy tunes.
GAMEPLAY 7/10
Plays just like the MMBN games but the battles let it down.
OVERALL 17/30 = 57%