I can't remember where I read this anymore, but I came across a site once (ONE single site) which claimed that the "Hooked Man" version of Resident Evil 4 eventually became Haunting Ground on the PS2. Now, I've never actually played that game, but that did spark my interest. Judging from the screenshots I've seen, it's kind of hard to imagine that it did come from any version of RE4, but I suppose it could have just been completely overhauled. The environments don't look completely dissimilar, I suppose.
Anybody have any information on this?