Pokémon Legends: Z-A videos

A teaser trailer for Pokémon Legends: Z-A. Some plans for redevelopment are underway. Then we see futuristic-looking blueprints becoming reality and it's revealed to be Lumiose City in Kalos. The video ends with the logo reveal.

The first real trailer for the game, showing off actual game footage. We see our main character in the streets of Lumisoe City, and many of the Pokémon dwelling there. Mega Evolution is confirmed to return, and Zygarde 10% Forme sits atop a city roof.

A more detailed look at the footage from Legends: Z-A. We meet the first partner Pokémon, then various characters in the game. Wild Zones are shown, where wild Pokémon thrive. The new and unique battle system is shown, followed by Mega Evolution.

As part of the Nintendo Direct, a new trailer is shown. The first part recaps earlier trailers, but then the Z-A Royale tournament is announced. At night in Lumiose City strong trainers come out to battle in battle zones marked in red. We then see a few returning Mega Evolutions.

An initial trailer as part of a Pokémon Presents. It starts with an Absol seemingly in trouble. We see various shots of Lumiose City, then we're introduced to some new characters in a strategy meeting. After some fashion shots, footage from the previously-revealed Z-A Royale is shown. More characters follow, including the evil team then Emma, a detective.
Wild Pokemon are Mega Evolving on their own, and Mega Dragonite is revealed.

An extended look at the features revealed in the previous trailer. The game's main goal is reiterated, then various characters are introduced: Urbain/Taunie, Lida, and Naveen, who are part of Team MZ. And Corbeau from the Rust Syndicate. Fashion/style choices are shown.
There is a mission system where you can complete tasks for townsfolk, including Emma the detective, who is investigating Rogue Mega Evolution. Catching Pokémon aids the research of Mabel from the Pokémon Lab.

A new format of Link Battles is revealed: Z-A Battle Club. Trainers face off against each other in a live, melee-style battle. Whoever KO's the most Pokémon wins.

A spooky found footage trailer. Two people explore an old rundown house. They hear various noises and keep exploring. Some Pokémon jump at them from out of nowhere. Upstairs there is a light on in one of the rooms. Another trainer comes out of the room, followed by Mega Victreebel, who is out of control.

An in-game look at Mega Victreebel. It Mega-Evolves, then we see it bouncing to follow various Pokémon and attacking them.

Machamp and Hawlucha enter a wrestling ring. At first Machamp is winning the battle, but then Hawlucha Mega-Evolves and makes a comeback.

A secondary trailer using in-game footage. It follows a similar story - a Machamp and Hawlucha face off, Machamp is initially winning but the trainer Mega-Evolves their Hawlucha and wins the battle.

Taking the form of a news report, various social media clips and found footage clips are broadcast, showing different people being entrances by something... which turns out to be Mega Malamar.

In-game footage of Mega Malamar. The player approaches another trainer for a battle and Mega Evolves their Malamar. Then it seems to hypnotize the player...

A new trailer shown during September Nintendo Direct. The first half recaps previous information with the starters of Chikorita, Tepig and Totodile. But then we see the original Kalos starters of Chesnaught, Delphox and Greninja, and they are Mega-Evolved!
Following that are some more battle scenes including Rogue Mega Evolution battles.

An announcement of future DLC before the game is released. Hoopa appears and shows us a portal to another dimension, which contains various Mega Stones including the new Mega Raichu X and Mega Raichu Y. No actual footage of the story or gameplay is shown.