Right. But bugs here and there indicate buggy code. Not incomplete or unfinished code. There are bugs in most production level softwares from video games to office apps to operating systems. That doesn't mean they are unfinished. It means they are buggy. There are bugs in Williams games as well. It's not a matter of semantics. It's fine to want a better quality of code. But to bitch that the code is unfinished is really a separate discussion.
Maybe we are defining finished code differently. Here is my definition: I do not think finished code means they never work on it again. It basically means they have production level software that could be left, and the game is fully enjoyable. Wizard modes are implemented. It does not mean bug free. It does not mean optimized for every possible fun feature. I would consider avengers, tron, acdc, avatar all finished. I would consider xmen almost finished. Bdk I consider finished. It has all the game there. Whether its stubbed in and polished is something that could be added but not required for finishing. Games above all could be improved for fun and I hope more software comes out in the future. But I wouldn't call them unfinished. I might call them slightly lacking.
I've played family guy a few times and never noticed a sound bug. So, whatever the bug is, it doesn't seem critical, at least not so critical to consider it unfinished. The avatar le stomping suit seems a valid point though. That's a game feature that an LE buyer was promised and should be added. I have a pro so don't really care but that isn't really relevant.
For acdc, what the hell is Tunes N stuff? I don't see any insert for it. Doesn't feel like a mode I get to in the game. Doesn't seem like a required feature to implement.