First of all, I'm a Tintin fan, I actually has read all the Tintin commic book and the movie is a great combination of 3 of them (even if one of them has not relationship with the unicorn one), but even wit that I must said that generally all the video games based on a movie picture are not so good, but The adventure of Tintin the video game is an exception, this game is extremely fun, has very good graphics and sound, the control schema is very easy and the 3D effect is a plus to play this game.
Graphics: Graphics are good for a 3DS, a great part of the game are played in 2D, but has a great and soft change from the 2D to the 3D game in some levels, the animations of the 3D models is very smooth and somo of the are very funny (like Tintin batteling whit the Allan crew)
Sound: The sound is good
Story line: is very like the movie one, even if you are not saw the movie you can understand the story line, one this that I must said is that in the 3DS version the transition in the storyline between levels are showed like a commic book, not like the othrs version of the game that show it like a 3D animation
Control schema: The control shema is very easy and confortable, and diferent levels has diferent control schema, çouse in some levels you must control a plane or a bike and in other levels has the control of tintin in 2D and 3D (and in every one the control schema is a little diferent), in some other levels you have to use the tactil screen to play the level, the control shema is very easy and had very options in different levels
Extras: you had a extra game, the Hadook dreams, in this minigame you can play alome or with a friend in local play and U must complete some levels that are acually capitain Hadook's dreams.
conclusion: this game is a grat game for low/intermediate gamers, has good graphics, sound and animations, the story is very easy to understand, the control schema are very easy and variable in each levels, has a minigame and it if funny too. It is a shame that Tintin are not a character popular in America like he is in Europe