Well, the thing that we thought at first - Evil MC and Evil Bacon working together - at least for now, has proven being false. OMJ, which is probably a bacon from a really distant future, is the one helping him.
Lets put some stuff in a debacle: All the times where the Evil MC appeared.
If my accounts are right, there were two times actively and another passively:
1- The first one where he has beaten Gaz;
2- The one where he killed the tattoo-shop girl;
3- The one where he talks with OMJ on the ending of the first part of ch2.
Now the question: why he did what he did?
Some speculative answers:
1- Its hard to know why he beated Gaz, but it has proven that the girl was something before and turned into something else before the release of the first part. Maybe something related with the transformation?
2- The motive is pretty obvious: The Evil MC knows of the robots. He also probably knows that there's a agency trying to kill him at some point, but its unclear how this stuff mix together. Maybe something related to his "power" to "look" between the dimensions, even not being on the time-machine.
3- At this part, he looked like an rogue-agent, or better saying, someone which does something knowing that there will be a immediate consequence for him, but thanks to that action, a better result will happen. The fact that he can fuck girls from the present, the past and probably the future its just child's play if compared on what is about to happen.
Well, this chapter 1 lets a lot of questions and almost no answer, only the fact that the Teen Nika is dead and the Milf Nika probably will not be interested to come back so easily.