I was pleasantly surprised by the quality of this adventure game...
Graphics 8/10
The game is divided into two sections, the starting castle and the nearby village. While some parts, like the theater look uninspiring, others parts like the laboratory or the tower inhabited by an old crow look nicely detailed. Same goes for characters, some are nice to look at and look unique while others, like in my opinion the leading bat character Froderick, look just stupid. All in all I would say the graphics are average, for an adventure game that is.
Sound 9/10
The music and/or some sound effects are not worth mentioning. What is worth mentioning is the voice-acting. Both of the main characters sound quite nice, Mona the lead vampire character is a not-so-much intelligent french lady whose main hobbies include collecting teapots and wearing a lot of perfume, while Froderick the lead bat character is a wisecracking young guy who perhaps knows too many puns and usually breaks the fourth wall. Sometimes this can lead to very funny sequences, I for example laughed at a house where in every window he saw a scene from one of Hitchcock's films, in one window he saw what he described as a very still old lady (from Psycho) in the other a man looking at the street (from Rear window) and he topped it when I ordered him to fly up and he exclaimed he won't for he would get vertigo (from Vertigo). Other times this can get just boring, usually when you don't know and/or haven't seen the films, games, characters or scenes he makes pun of.
One big plus was definitely the fact you could order Mona to speak to everything which you could look at and unlike in many adventure games where the hero just said he/she cannot speak to it, Mona instead spoke to those things. This created many many sequences where she started speaking to chairs, goblets, incense burners and so on, and she always started it with "Hello chair/goblet/...why are you...?" and Froderick of course makes puns every time. Some are funny while some are lame, but the way Mona starts these dialogs got me chuckling every time. And to top it off, towards the end of the game there is an object to which she says "I don't talk to inanimate objects!" and Froderick, this time truthfully, exclaimes "Whaat? You do that like, all the time...it's weird by the way..."
Story 7/10
Not good, but not bad either, seen far worse stories than this, Avatar for example. Either way the thing is, Mona is unhappy with being a vampire and she tries to run away from it (as a lot of young girls usually do) and so she's gotta escape the castle where she is imprisoned as well as get back home to Paris. There story is not intriguing, but at least it does not get in the way and is at least somewhat original.
Gameplay 9/10
Typical point and click adventure, but I had to rate it higher than average because in my personal opinion there was one big step forward present. The way they handled items which are too large to fit into the inventory or are just too big to carry around. Instead of taking these items with her, Mona simply remembers them and so-called ghost versions of them appear in the inventory. And only once you successfully use these items, she enters a sequence where she returns back to these items and carries them to the place they are used. This was a very elegant way of solving the adventure game conundrum of "How the heck is he/she carrying all that stuff around?". I have not seen such an elegant way of solving this problem since Simon the sorcerer 1 and his magic hat which could absorb entire ladders or huge sousaphones.
Replayability 5/10
Well, you can miss some good puns if you don't click on everything or try to talk to everything, but other than that the replay value is mostly the same as with other adventure games, low.
All in all I was impressed by this adventure game, most adventure games that came out in the last decade are definitely not of this quality.