And here's the second of my fifth generation of RMs.

Name: Null Man
Designation: DW2N-034 Robot Master
Weapon Get: Null Pointer
Other weapons: Null Stab
Background: Ok, to tell you the truth, I have absolutely no idea how I came up with this.

Null Man is a very mysterious entity that appeared one day in DWII's network. He wasn't causing any problems to the network per say, but somehow, DWII thought that he might have some hidden potential. That's when DWII somehow managed to extract Null Man out of the network, and something amazing was discovered...
Null Man is always seen in his first form (the ghost-like sprite), hovering above ground, and loves to disappear and reappear to ambush his enemies. He uses his pointers to stab his enemies, rendering them void of their programming (Null Stab). However, if somehow he's injured significantly, he will reveal his true form (the second sprite). It seems that Null Man is all but a small black hole of sorts. In his form, his main weapon is the Null Pointer, in which 8 pointers circle around him, and can be fired off. If hit by the pointers, the enemy is rendered immobile, and is sucked towards oblivion into Null Man's black hole body.
Character: Never speaks, but seems very timid.
Weakness: He sure loves to disappear... Meister Slice...
And his Master Weapon...
You get... NULL POINTER!

You get this weapon from Null Man. Megaman surrounds himself with 8 Null Pointers, that follow him around. Each pointer can take 2 hits before disappearing, and Megaman can fire off any remaining ones in one specific direction. (So in-game, it's like Junk Shield in terms of protection, and it's like Leaf Shield in terms of firing off in one direction...) One special note is that enemies hit by Null Pointer is temporarily rendered immobile.