I wouldn't say it's bad. If it were a standalone game it would be good. But it's just not the same as the first one, and it's weirder in a few ways. The first one is SCARY, and has an interesting story. BZ feels sort of contrived, and doesn't capture the magic of the first, sort of trying to replicate the first game's feeling but somehow not quite getting it right. And BZ has a weird ending that I didn't like. And the added cold meter is completely pointless.