These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Periphery Demographic: The game's designed for younger players, but like with the other cute Pikachu games, a pretty good chunk of the fanbase are older gamers who like adorable things.
Surprisingly Improved Sequel: The first game wasn't really anything special, but good enough for what it was. The second game gives us the Unova starters as playable characters for more variety, a more developed plot and some new features.
Tear Jerker: In the sequel, watching all your friends, as well as the Wish Park crew (and Reuniclus), being sucked into the Dark Vortex is both this and Nightmare Fuel.
That One Minigame: Several of the Attractions may fall under this. Especially when you're trying to achieve the bonus via getting the fastest time or getting the most points.
The Computer Is a Cheating Bastard: A few of the battles against certain Pokemon can fall under this. They just love to spam certain moves without giving you any time to recover.
Interestingly enough, the inverse can be true as well. In some cases, the best way to win a battle isn't via strategy. But rather just repeatedly ramming into your opponent while running circles around them.