I really do not want to do this however after watching Bruce Banner(Marvel Comics) transforms into the incredible Hulk and then revert back to a man form after a while much like a puffer fish ballooning itself to scare off potential predator, I become obsessed to unveil the tricks behind Count Dracula transformation into a bat and vice versa.
Doctor Banner miraculously avoided being pulverized by gamma radiation which is lethal to almost every living organism ever existed on Earth, the side effect is that he flew into rage easily and gains almost infinite strength that allows him to bench press probably even a super massive stellar black hole for warm-up if I'm the editor. (I call this version "Indominus Hulk" when his bones is replaced by adamantium skeleton fused with all Infinity Gems centrifuge.)
Back to Count Dracula's ability to transform into a bat, I need something that can explain the sudden change in body mass when switching between the bat and man forms. Perhaps Count Dracula in his bat form introduce special kind of chemical to dissolve the internal organs and muscle tissues of its victim before sucking them dry, the body instantly store all excess calories as fat and hence that explain its human form which is still problematic.
Unacceptable answers as follows:
- consciously manipulate the strong interaction between quarks...alright I'll be lenient but do not go overboard!