what's with the unusable items?
There were many occasions in Sanitarium where I'd pick up an item, and then never use it. One example is in the Aztec chapter, within the Water Temple, theres a red coloured fish . I pick it up, but I never use it anywhere, its simply in my pocket til the end of the chapter. And once I get to the next chapter, it dissappears.
So I'm wondering, what is up with with these items? If you can't use them anywhere and they eventually poof out of existence, whats their purpose? I'm guessing if you manage to collect all of them you unlock something. As cool as it may be, I doubt it though...