The story is often told through more expressive and emotional means.
The second is facial expressions and emotion. The Black & White games were a far more grandiose cinematic expression and even featured animated facial expressions but it was largely limited to it's 2D sprite-work. The thing is the Black and White games surprisingly achieved a lot of emotion from it's storytelling through the limitations of that sprite-work. You could feel how happy and shocked characters are from just sprites and because of that Pokemon Adventures Black & White takes such emotional storytelling to the next level with more vivid facial expressions, body-language and a beautiful background full of hills and trees. We see Black run up the cliff and shout his dreams to the world in excitement alongside his Pokemon. In one of the most famous shocking scenes of Pokemon Adventures Black & White, we see White just horrified and falling into a coma at the Ferris Wheel in Nimbasa City. We the readers feel much more disturbed by this Ghetsis than the one in the games through his gentlemanly facial expressions as he speaks of using people as tools. We don't get the impression that he's a generic control freak like the games but a disturbing sociopath who believes his own words from this expression-based storytelling alone. We the readers feel delighted that the introverted straight-faced N smiles upon a realization that Pokemon can be happy with Pokemon trainers. When White hears this, she can't help but cry in joy that N realizes the truth that Pokemon can be happy with humans. We feel what White is feeling and are happy for N upon realizing this and it goes even deeper than that actually. N explains why he represents "Ideals" in this canon and not "Truth". His "truth" wasn't truth but were his ideals. He just couldn't accept Black's truth that Pokemon could be happy with people. He did knew this was true but he had a difficult time accepting it because of his father's manipulative nature. We see much more emotion and weight into N's words. He just wanted to be a hero to Pokemon but instead feels like he may have done the opposite, that he may have actually hurt Pokemon by being Ghetsis's puppet. Despite all this, Black forgives him with a smile while tucking his hat, claiming that he believed that despite how much he hated N for what he did previously, he just wanted what was best for Pokemon. This is the kind of emotional weight that surpasses the games personally.
Pokemon play a immense role in this storyline, arguably surpassing it's game counterpart through more expressive scenes like this.
Finally there's the third subject that I believe Pokemon Adventures Black & White does does the subject of Pokemon itself better than any medium, including the games it's adapting from. We seen the Black & White games dive into the issues surrounding Pokemon through it's yin-n-yang themes and it's also here in the manga but much more refined and much more impactful than before carrying a lot of emotional weight that affects Pokemon. We, the readers, understand why Black finds Team Plasma's goal to "liberate" Pokemon disturbing and infuriating. These are not wild Pokemon they mostly speak of but Pokemon who have lovingly been in the warmth and care of their trainers for a while and to see the trainers release them believing this is the right thing without actually considering what their Pokemon think is quite sad. Through facial expressions, emotion and tone we actually see these trainers question their motives if their Pokemon are truly happy being with them and just like that, they set them free after hearing Team Plasma's speech early on in the story. The thing is, they haven't actually considered what their Pokemon actually thinks. Others simply head back to the wild but some Pokemon who were once happy with their trainers feel abandoned, scared and alone in the city as strays, unsure of what to do. This is disturbing as the former Pokemon trainers sincerely think what they're doing is the best for them and Black is furious at Team Plasma because of this. We see just how angry and happy Black is when he meets a Galvantula. This "wild" Galvantula is a recently released Pokemon into the city and it's a fairly-trained Pokemon that is causing havoc because it too is scared and unsure of what to do in the city. However not everything is depressing. We definitely see the fun subjects of Pokemon, especially through the character Black. Braviary has great memories of being Black's very first Pokemon. Galvantula as mentioned previously was a stray Pokemon that was recently released and happily joins his team after feeling abandoned by his previous trainer. Carracosta is much older than Black and like a grumpy old man, ignores his actions and it's funny how Carracosta does the opposite of what Black wants. There's also Tepig who is just annoyed at Black not "hearing his voice" at first, not understanding him at first that Tepig doesn't want to be nicknamed after his final evolution. He's not an Emboar, he's an Tepig and he doesn't find Black's first nickname acceptable. Black is surprised but happily accepts Tepig the way he is, giving him three seperate nicknames based on his three different evolutions. We also see Black's Munna. Not only is Black's Munna one of his oldest childhood friends but Black's Munna helps Black think clearly through dream-eater.
Black the Dreamer
What I find interesting about Black is that he's essentially the most OP Pokemon trainer to start his Pokemon journey having already a lot of early experience and knowledge in Pokemon battles. As a child, he tried to impress Prof. Juniper into giving him a Pokedex as she's distracted with her research, repeatedly yelling out, "NOTICE ME SENPAI!" through the window with no luck. It's because of this that Black actually starts off his journey with both the experience and knowledge and has even laid out a plan of how his journey could possibly go. So how do you balance such an OP protagonist, simple. Black is a very intelligent kid but he has day-dreaming problems, dreaming about the Pokemon League so much that he cannot focus on his goals and that's where Black's Munna comes in to eat his dreams. Not only does he prove to be quite a powerful Pokemon battler early on, he also puts on his Detective Pikachu hat (joking he doesn't actually do that) and solves various mysteries related to Pokemon and this is a central theme about Black. He loves Pokemon and loves to interact with them and it's not just interacting with his team of Pokemon but also interacting to new and wild Pokemon do we, the readers, see Black's interactions with Pokemon as a huge part of Black and White's strong subject of Pokemon. Another way of interacting with Pokemon of course are Pokemon battles. Black battles all eight Unovan Gym Leaders and they are exciting, fast and action-packed but personally my favorite part is actually the times Black interacted with the Gym Trials itself which are big gigantic puzzles within the Gym itself. I laughed when Skyla says she wasn't joking about sending Black away all the way to his home-town by cannon-fire. Black's horrified reaction that she wasn't kidding was hilarious.
White the Dreamer
Black isn't he only main character. There is also the character White who also helps drives the story and Black's Pokemon journey. Black & White have an employee and employer relationship. In fact Black often nicknames White as "Prez" because White is the president of the BW Agency which serves to help bring out the talent in Pokemon. She had this dream ever since she was a little girl who saw a wild Pokemon climb on a stage and perform. From that moment, she realized that Pokemon love being in the spotlight. Like Black, she's very hardworking and tries to meet deadlines. One of the trends I have noticed in Pokemon Adventures, is that there's always a character that represents an entirely new feature in the games that the player character can participate in. In Gen 2, Gold represents the new breeding mechanic at the time. In Gen 3, Ruby represents the new Pokemon Contest mechanic. Gen 5 introduces Pokemon Musicals and it's in this canon that White is the creator of Pokemon Musicals. To be honest I completely forgot about Pokemon Musicals existed at the time until how they introduced it in Pokemon Adventures BW. It took me by surprise that White, the President of the BW Agency, is literally the creator of Pokemon Musicals here and what an ingenious way of cementing White's role in the Pokemon Adventures universe even further.
N and Tepig.
With Black & White's happiness in the first half of the Pokemon Adventures manga, nothing lasts forever. As mentioned before, Ghetsis is just a scumbag and I applaud GameFreak for successfully make Pokemon fans hate this villain in the first place. In the games, we see his organization, Team Plasma, causing very horrible consequences in the Unova region but in the Pokemon Adventures manga, not only does Team Plasma have region-affecting consequences but it becomes way more personal to our main characters and the readers. What Ghetsis's manipulation over the organization does is just quite awful. If Team Plasma's speech was one thing, it continues on with one of Bianca's Pokemon stolen. We see White losing her Tepig and falling into a coma because of N offering Tepig a choice to choose her own path. We see Black absolutely horrified that his childhood Pokemon friend, Munna, just leaves him after N explains that Munna only wanted to be with him because of his tasty dreams. We see Black's best friend Cheren who wants to get stronger manipulated by Team Plasma. We see N himself facing the horrible realization that he may have actually hurt the Pokemon he loves, not liberated them, that he was just a puppet to Ghetsis. Ghetsis is a huge scumbag and he does all this with an angelic smile on his face believing everything he does is right and it's because of this that he's such a great villain.
One of the most powerful scenes in Pokemon history.
However as dark as this is, it's also happy to see them overcome them or even accept them. For our heroes, there were lessons to be learned from this. Although Black thinks of N as the villain, it's good that N helped White's Tepig choose her own path. It helped White become a stronger Pokemon trainer and it helped her listen to her Pokemon's voices, understand them better and White actually thanks N for that experience which actually surprises him and makes him feel a little happy during his darkest moment. Black also has come to the realization that N isn't a bad guy. He was just trying to help Pokemon and that the real villain is Ghetsis. Cheren comes to his senses, Bianca is reunited with his Pokemon and one of the most powerful scenes in Pokemon history is when we see not the Gym Leaders but ordinary Pokemon trainers who have different jobs and dreams stand-up to Ghetsis, one of the strongest Pokemon trainers in the world, just to rescue the Gym Leaders and believing that they all have a chance to become something more. Also Iris. I freaking love this take on Iris. She's not Black's companion but his rival and quite a sassy one at that. However the most memorable scene, one that I notice that even casual Pokemon fans found awe-inspiring even though they never read the manga, was the surprised realization that Black's team of Pokemon actually believe in his dreams during his darkest moment. It was a reminder that they have been through so much together on countless adventures across different lands against different opponents and Black's Pokemon wanted to see Black finish this Pokemon journey from the beginning to the very end. This was a very powerful moment as it showed how much Black's Pokemon had faith in him and in-turn Black understood this and had faith in them as well. It just wasn't his Pokemon. Black's friends believed in him too. White, Bianca and Cheren believed in his dream. This powerful moment doesn't end here. When Cheren admits he wants Black to succeed, we see a familiar pink mist and Black realizes who is coming. He smiles and welcomes his Munna, now a Musharna, to his team. Black finally understood why Munna left him, it was to get stronger in order to make Black's Dream of being the Pokemon Champion come true. It's from this that Black can hear his Pokemon's voices, he understands them and Reshiram has finally awakened because of this. Reshiram's awakening is also a powerful moment, signifying an untold requirement for him to be awakened. The one in possession of his light ball has to hear their Pokemon's voices and Black can hear them.
Black & White reunited.
This is overall definitely one of the more happier and light-hearted adventures despite the more mature content and you'd think that such a great epic adventure that nearly exactly follows the games would get a happy ending but you have to remember that this is Kusaka were talking about. He always has a surprise for us and what happens at the end is honestly pretty dark. I haven't seen this sort of ending since the time the Pokedex Holders turned to stone in Gen 3 and this just makes you think further that Ghetsis is just freaking scum, even worst when White expresses her sadness at the end after being reunited again and that is Black is being pulled into Reshiram's light ball, giving one last smile to White as he reveals his BW Agency shirt that he's wearing to promote White's new company. The next panel ends with White walking to a sealed light ball silently in disbelief. A lot of fans just couldn't' believe what happened and they hope that one day, Black makes a big return in BW2.