Long story short, the latest in the "cutePikachu" Pokémon spinoff series, and perhaps the one with the highest production values: instead of being a virtual pet, it's more of an action/adventure game for little kids.PokéPark Wii: Pikachu's Adventure stars our favorite Pokémon, Pikachu, as the main character. Mew has asked him and his friends to help repair the Sky Prism that powers Mew's home, the Sky Pavilion. The Pavilion floats high above the PokéPark, where many Pokémon live and come to play: the friendship and love among the Pokémon of the park sustains the Prism, and without it, the Pavilion will fall and crush the PokéPark below. Pikachu can befriend other Pokémon, thus helping to restore the Prism, by doing favors for them, or proving himself in Skill Games with them.The game has a sequel, PokéPark 2: Wonders Beyond, which got released on the Wii (in Japan, it's titled Beyond the World) and featuring Pokémon from Black and White and multiplayer.
These games provide examples of:
After the End: The most lighthearted take possible on the trope, and only in the sense that humans have abandoned the theme park for Pokémon to take over. It's unclear if humans are still around elsewhere or not.
Oshawott rescues the group from Cofagrigus's cake barrage.
Zoroark calls out Gothitelle, causing the Wish Park crew to leave.
Reshiram and Zekrom bringing Piplup to Pikachu to snap him out of his depression.
Piplup goes to get Reuniclus to help stop the Dark Vortex, arriving in Wish Park just as soon as the vortex starts swallowing everyone up.
Berserk Button: Never ever attack a Ursaring or any other big Pokémon. They're not afraid to beat up Pikachu if you do that.
Brainwashed and Crazy: Participating in Wish Park's attractions has this effect on the Poképark Pokémon. It's also implied Gothitelle can do this to Pokémon directly.
Call Back: A few characters in the sequel, including the Duskull in the Unawarehouse and the Burmy in Verdant Court, are from the original game according to their in-game dialogue.
Chekhov's Gun: Bellossom mentions finding something at the Beach Zone when you first visit her zone. The Magical Watering Can she found is how you revive the Gracidea flower.
Easy Amnesia: Darkrai induces this in the other playable characters besides Pikachu in Wonders Beyond, causing them to lose their memories of Pikachu and their adventure. Luckily, a quick battle or game of Chase can bring them back to their senses.
Even Evil Has Standards: When the black hole is destroying Wish Park and sucking up all the Pokémon, Darkrai seems to realize he has gone too far, and enters the black hole with the item needed to stop the black hole and manages to save everyone.
Fighting Your Friend: Pikachu is forced to battle a brainwashed Piplup in Wonders Beyond.
First Person Snapshooter: While the first game gave players the option to take screenshots, the second game requires specific pictures to be taken to befriend certain Pokémon.
In-Series Nickname: Pikachu is nicknamed Lightning Strike by the Pokémon in the Lava Zone.
Pikachu and the Unova starters are referred to by a variety of nicknames in Wonders Beyond. Which nickname is used is dependent on the player's actions.
Laser-Guided Amnesia: In Wonders Beyond, anyone who stays in Wish Park seems to get this. Late in the game, Darkrai does this to Piplup, Oshawott, Snivy, and Tepig himself and Pikachu has to snap them out of it.
Lampshade Hanging: The Pokémon who teaches Pikachu Iron Tail is Primeape, who you may know to not have a tail. It's a lampshade on the fact that in the standard Pokémon RPGs, Primeape can learn Iron Tail from its pre-evolution, Mankey, who does have a tail. When Pikachu questions how he can know it, he basically says that he's just that good.
There's a Tyranitar that mocks the game's premise in the Granite zone.
Hey, doesn't the Pelipper and the bulletin board next to it, along with the Corphish going "hey hey!", remind you of some other Pokémon spinoff?
Snivy being a girl can count as one for Ash's Snivy
Nice Guy: Blaziken. According to Sneasel, he never leaves an injustice unpunished, no matter how small! He also saves other Pokémon when they're in trouble.
Proud Warrior Race Guy: Blaziken and his followers in the Lava Zone. As one Pokémon put it, "Let's battle. Don't ask why. Battling is just like saying hello here."
The first time you walk through the Haunted House in the Haunted Zone, you're met with a Duskull who promptly tells you you're the 999th guest to visit.
Spotlight-Stealing Squad: Piplup is the only supporting character from Pikachu's Adventure that returns in Wonders Beyond, and has a more prominent role.
Unsettling Gender Reveal: After the main game is complete, a quick battle with Gothorita reveals that many Pokémon mistake him for a girl.
Video Game Cruelty Potential: To the other Pokémon: you can use your moves on them and watch them get hurt out of battle. Or, if you're feeling especially cruel, targeting bystander Pokemon while in battle with Iron Tail, or putting them into your opponent's line of fire.
There are several Pokémon, like Buneary and Pachirisu, who you can send flying several feet just by running into them.