Noob (original subz) is more or less evil/neutral, neutral in a sense that he does what he wants, evil in a sense that he does some morally "bad" things
jeez wish /I remembered that D and D chart of alignment, had lawful evil and chaotic neutral. helped put a general alignment down, just add more adjectives if you aren't happy with it completely and Zing you're in the clear. Like- Chaotic Evil with a heart of gold.
actually I believe sub-zero was always good. Older brother was going to assassinate Shang Tsung (I believe that makes him good), but he was killed by Scorpion making him noob saibot (so technically he is evil/rather he's corrupted). Scorpion only killed elder sub-zero because Quan Chi told him subby was responsible for killing Scorpion's clan and subby only ever killed scorpion, turning him into the spectre bent on vengeance. But Scorpion is neutral and will do what helps him get closer to achieving vengeance.