Michael Pachter works as an analyst for Wedbush Morgan Securities. With how often his "anaysis" is wrong, and the fact that Wedbush Morgan Securities hasn't fired him due to incompetence, it can be safely assumed that he is saying what he is saying because it suits the needs of Wedbush Morgan Securities. While it is unlikely that he is part of a traditional Short and Distort scam, what he is involved in may not be substantially different ...
As an analyst, Mr. Pachter probably works studying and predicting the performance of a few companies. I think the stated he evaluates something like six companies, which includes EA and Activision, reason why he's often cited by the gaming press. As an analyst his performance will be evaluated by how his advise matches the outcome of the stock prices. Probably, he's working exclusively with companies traded at the New York Stock Market or NASDAQ and thus, he knowledge of Nintendo is not as deep as other American companies.
I don't know much about his performance as an analyst but it bugs me he often presents himself more like some sort of gaming industry guru giving a lot of wild predictions about nearly anything. This is not uncommon among analysts. As they have very little to loose (missed predictions are usually forgotten after a while), the often give wild ones as, if they hit the mark, they will become instantly famous and, therefore, they will be able to charge more for the services.
In the end, I will give Mr. Pachter the same credit as I give most famous stock analysts, that is, not much.