Nintendo has revealed fresh details of Pokémon Legends: Z-A's upcoming Mega Dimension DLC, which stars two new variants of Pikachu evolution Raichu.

Today's trailer notably confirms a release date for Mega Dimension: December 10. We also got to see our first look at more new Mega Evolutions coming to Pokémon Legends: Z-A as part of the DLC: Mega Chimecho and Mega Baxcalibur.

Mega Dimension sees players enter Hyperspace Lumiose with the help of dimension portal Pokémon Hoopa. "At a glance, Hyperspace Lumiose may resemble the real Lumiose, but it’s a very different place," the trailer's description reveals. And indeed, this version of the city holds a big difference — here, Pokémon can temporarily be boosted beyond their normal Level 100 limit.

With the help of new character Ansha, a donut chef, players can feed their Pokémon mystical sweet treats that over-level their critters within Hyperspace Lumiose's mysterious limits. Pokémon X and Y gym leader Korrina will also appear as an ally.

The trailer states that the Mega Stone to unlock Mega Baxcalibur will be distributed in Season 4 of the game's online ranked battles, following the similar release of Mega Stones for Mega Greninja, Mega Delphox and Mega Chesnaught.

An extra side mission within Pokémon Legends Z-A is also now available, which will provide the Mega Stone for Mythical creature Diancie. "Shine Bright like a Gemstone" will become playable today for all owners of the game, regardless of whether you have bought its DLC, or whether you get its Rihanna reference.

Nintendo previously announced Mega Dimension back in September, when fans raised their eyebrows at its early confirmation and $30 pricetag. As many pointed out, purchasing the DLC and the base game on Switch 2 means paying $100 total.

Earlier today, Pokémon Legends: Z-A received its first post-launch patch, which makes adjustments to its ranked battles and fixes a number of bugs.

If you're jumping into Pokémon Legends Z-A, choose your Starter Pokémon, then check out our in-progress Pokémon Legends: Z-A Walkthrough, plus our Side Missions List to make sure you don't miss anything. We've also got a Pokémon Legends: Z-A Pokedex, and most importantly, a guide to All Clothing Stores and Clothing in Pokémon Legends: Z-A so you can catch 'em all in style.

Tom Phillips is IGN's News Editor. You can reach Tom at tom_phillips@ign.com or find him on Bluesky @tomphillipseg.bsky.social