Well, I made it past the third boss and into a new area, and I have to say this camera is just completely useless for boss fights. Both against the Gunslinger and against Loser Von Oz I got hammered for some stupid deaths I could have avoided if the damn camera would just stay on the guy it's supposed to be on. Not only can't I see the enemy as they dart around the area, but because I'm not locked on to them it's pretty hard to get a good range for the Chainsaw (which is seemingly required to kill anyone other than the standard flunkies). I also experienced the "joy" of the first bike level, and it's pretty bad. If this is any indication of future bike levels, they're just one long waggle fest. I thought I was actually doing fairly well (I WAS killing everyone I ran across), but the announcers just kept chiding my poor bike fighting skills so I don't know what I was doing wrong.
As for the Mini-Games, they all sound fun in concept but because the camera is so terrible it's extremely frustrating trying to do even a simple minigame like Man Darts because I can't keep the dart board in sight so I can swing a guy into it. They're fun for a diversion from the usual perverse serial murder rampage, but most of them just don't work like they should. I had an especially hard time with Man Darts because I had one of those huge chainsaw-wielding oxmen follow me into it, so while I was trying to swing some Man Darts up he was sawing me down with the damn chainsaw (I eventually managed to swing him into the dartboard, but it cost me a life trying and slaughtered my score).
Overall, I have to say that for all No More Heroes' problems, it was more fundamentally sound than Madworld is. On the flip side, Madworld is more creative and has a much more interesting story than than No More Heroes had (though nowhere near the level of sheer lunacy).