There is really no reason to dislike this series.
You pull off camera angles, voice acting, characters, and writing like nobody else does. Clearly a lot of effort was put into this series, but you make it look so easy all the same.
This episode is a perfect end to the season, maintaining the classic humor of the other episodes with those absolutely shocking twists that every great season finale to a show should have. I was simply in awe of the rapidly-building tension in the confrontation, which was presented in a more effective manner than anything I've ever seen online and many things on television or on the big screen. It was that kind of tension where you get lost in the scene, your heart starts to beat a little faster, you temporarily forget about everything that has led up to this point and you have no idea how the tables will turn or how things are going to end up.
And then, after that intense sequence, the drama continues with a very different kind of shock--a truly curious twist in the viewer's knowledge. The whole mood of that cliffhanger is mystifying. You really worked wonders with the lighting and color in that scene.
The characters in this series have become increasingly impressive. Originally Mickey, Eric, June, and the Boss looked like nothing more than morons and jerks. Over this period of ten months, the characters have been given senses of rivalry, many contrasting emotions, and in general a lot of characteristic depth. Mickey is now an independent, remorseless, fearless soul with a mysterious past. June and Eric are revealed to be gamers at heart, but despite their disagreements with Mickey, they'll easily put down their Wii remotes and work together to make attempts at comforting him (even befriending him), a man who considers himself their enemy. And the boss is now clearly overly adamant about the work of those he has the authority to 'boss around'--and he's almost like a dictator in that sense--but even someone as serious as he is won't go to the extreme to force work on someone else, not even under unbelievable pressure.
Now, for the fun, I'm going to add my own thoughts to theories in reviews:
Mickey and the Boss have a lot more in common than just the dark circles around their eyes. They may have completely opposite views on video game videos, but taking their attitudes into consideration, they are quite similar. In the Robert Burgless episode of WGJ4K, a simple argument turned into a rage for Mickey. In this episode, a simple disagreement sent the Boss aiming a gun at his own. They both overreact to great lengths given a particular trigger, far beyond the point most 'dicks' react to greater issues, they both hold ultimate opposition to opinions they find to be 'wrong facts,' and they both think higher of themselves than they do others. Though I have nothing to back this idea up, I think if Mickey was in the position to start his own company with slaves at his own disposal working against VGV, that's exactly what he would do, just like the Boss.
At this point, however, I don't think it would make a lot of sense for the Boss to be Mickey's father. My reasons for saying this stem mostly from the way they talk to each other. Neither one of them seems to even remotely recognize the other as a relative, meaning it would be illogical for Mickey to acknowledge family relation as his reason for being kidnapped by VGV, and the reason is probably entirely different. Of course, Mickey's statement about knowing why he was the one taken away by VGV in this episode does contrast from the first episode when he said, "I don't even know why am I here." This could mean anything, really. Maybe Mickey didn't yet want to let people in on his personal life and thoughts, maybe he learned his reason for being taken away later on, maybe he half-lied and he only knows part of the story of why he's there, and maybe this is a continuity error. Perhaps time will tell.
Though short, this is an eventful and masterfully-done finale. Only one thing could substantially improve this series... and that is continuation with a new season.