Not gonna put much text here. If you have questions feel free to comment. The game gets more amazing as I play it, it is hard to convey the feeling of 6 people bum-rushing the shit out of enemies. PSU moves faster than PSO and having 6 people at once makes it frantic and fun as hell. I can't even imagine how fun it would be if all 6 of those people knew eachother.
That Shadow-Lord-ish looking guy near the bottom is probably the first "boss" I fought, although he didn't have a cutscene like the old PSO bosses so maybe he is still just considered sub-boss. He was hard as hell and fun though.
Oh, and I had to turn my graphics card down to low settings to get a really smooth framerate. I realize it doesn't exactly look breathtaking on my PC, but I still think it looks great.