This is the final design for my NMC-Pikachu! I really like how it turned out, even though I doubt it's up to snuff with the monsters from the actual Parasite Eve games. Those things, I swear. I've listed some information about NMC-Pikachu below!

--Despite the size it appears to be in the image, NMC-Pikachu is only a little bit taller/larger than a regular mutated Rat, which looks like this: http://images2.wikia.nocookie.net/__cb20101208165331/parasiteeve/images/6/62/Rat-main.jpg
--NMC-Pikachu holds in a lot more electricity than a normal Pikachu does, due to having many more areas to charge it (not just in its cheeks), and has additionally gained claws and large fangs as 'natural weapons'.
--Its tail is very sharp near the bottom. It is comparable to a scythe.
--NMC-Pikachu does not attack anyone unless it is personally provoked. Eve may have mutated it, but it isn't as mindless as other NMCs.
--If many (i.e. 8-15 of them) NMC-Pikachu come together, they can cause horrific storms with strong destructive capabilities.
--When fighting NMCs and an NMC-Pikachu is present, it is best to defeat it first, because it can 'recharge' (read: heal) fallen or weakened allies with its electrical powers.

Keep in mind that NMC stands for 'Neo Mitochondrial Creature'. It basically is used to describe any of the creatures that Eve mutates in the first game. :p

Here is what Pikachu normally looks like: http://cdn.bulbagarden.net/upload/0/0d/025Pikachu.png