When Batman bursts up from the frozen lake, with the two captured villains in tow, the villains disappear for a moment, and then reappear into view. The animation doesn't show them sinking and surfacing, they simply vanish from one frame to the next. See more
Viral antitoxins... for a plague that doesn't exist. But if the virus is carried through, say, stray dogs and cats, the plague will blanket Gotham within weeks!
Days, actually. You know how many strays there are in Gotham, Batman? Three-hundred-thousand. Imagine if even only a tenth of them carried the virus. Not only will this little bottle make me a hero, it'll make me a fortune as well.