With the many huge releases coming to consoles by the end of the 2012, including the long list of Wii U launch games, it’s easy to forget about our smaller, portable friends at this time of year. And that would be a real shame, because the 3DS and PS Vita both have significant games coming this holiday season, including new entries in franchises as major as Mario and Assassin’s Creed, plus more niche titles that are worth a second look. We’ve wrangled a dozen games you should anticipate playing on your way to grandma’s house this December.

Release date: October 7

Breaking the Pokémon tradition of each generation getting a third version, Pokémon Black/White 2 is the first direct sequel in the series, picking up two years after the stellar conclusion to the first B/W. Though it offers little in the way of new monsters, it has a brand new plot that continues the surprisingly deep narrative started in its predecessor. In our Pokémon Black/White 2 review we praised that story, as well as the game’s many new features, including a World Tournament where you battle classic Gym Leaders from throughout the franchise’s history. Likely the last new DS game many will play, it sends off the system in style.

Release date: October 9

Enjoy arcade brawlers in the style of Castle Crashers, but wish they featured a scantily clad anime girl? If so, you’ll find a lot to love about Code of Princess, a 3DS title from new developer Agatsumo, a team that includes many of the people responsible for the beloved Sega Saturn game Guardian Heroes. The single player campaign stars an embattled princess protecting an ancient sword, and features cutscenes from the animation team behind Cowboy Bebop. And unlike most 3DS games, Code of Princess has robust online features too, including four player co-op and versus modes with more than 50 characters to choose from. It sounds perfect for old school Saturn fans looking for a pseudo-sequel to the system’s best beat-em-up.

Release date: October 23

Zero Escape: Virtue's Last Reward is a unique game this holiday season, and not just because it’s one of the few launching on the 3DS and PS Vita at the same time. A sequel of sorts to critical darling Nine Hours, Nine Persons, Nine Doors, Zero Escape is a sinister visual novel, sort of like Professor Layton--only you’re solving puzzles inside a brutal death trap with a group of unfortunate survivors. You can either work with your fellow captives or betray them in a desperate attempt to escape the series of murderous challenges. We’re betting this dark game earns its M rating in some very twisted ways.

Release date: October 23

When it hit consoles early this year, Street Fighter X Tekken was met with a mix of love and hate from fans. Many enjoyed the 2D mash-up of fighters from two of gaming’s biggest franchises, but others rejected it for on-disc DLC and balance issues. The game is now coming to the PS Vita with those controversial downloadable characters unlocked from the start, and it offers tons of cross-play options for Vita owners to engage with PS3 players. Can this final, portable iteration of the game win back love from fighting fans?

Release date: October 28

A 3DS launch game in Japan, fans of this puzzle series have been waiting a long time for Professor Layton and the Miracle Mask. Set before the first game in the franchise Miracle Mask updates the graphics from the DS entries, but still offers the same mix of ancient mystery, brain-bending puzzles, and stylish anime cutscenes. A bestseller in Japan, we’re hoping Layton is just as good in three dimensions as he is in two.

Release date: October 30

Out on the same day as the much-anticipated console version of Assaassin’s Creed III, the Vita exclusive Assaassin’s Creed III: Liberation is the most high-profile game to come to the Sony handheld yet. Using the same engine as its console brother, Liberation moves from the Colonial east coast to New Orleans to tell the story of Aveline de Grandpré, the first female protagonist in series history. With the action taking place in a mix of towns, wilderness, and swamp land, Aveline will battle Templars and indigenous wildlife, and there’s even the promise of her meeting up with ACIII’s star Connor. Additionally, if you’re planning to get the PS3 version of ACIII, playing Liberation can unlock certain items in the console game.

Release date: November 11

We hope you haven’t spent the last decade dismissing the Paper Mario games as “too kiddy,” because you’d be denying yourself some of the wittiest action-RPGs ever made. The first portable entry in the series, Paper Mario: Sticker Star has the same clever script and focus on deceptively simple combat, but simplifies the RPG elements even more, thanks mostly to the stickers this entry is named after. This time our flat mustachioed hero has to save Peach from a sticker-induced calamity by collecting hundreds of decals from the many regions of the Mushroom Kingdom. Made by the same team responsible for the previous outstanding Paper games, we expect this series to translate beautifully to handhelds.

Release date: November 18

On consoles, the Epic Mickey games are famous with Disney lovers for their esteem and respect for the mouse’s long history. The 3DS’s Epic Mickey: Power of Illusion displays similar amounts of respect for the rodent’s legacy--but instead of focusing on cartoons from the 1930s, Illusion is a tribute to classic Mickey games. Fans of Sega’s Castle of Illusion games will appreciate the hand-drawn sprites and 2D platforming, and players can experience stages based on Disney films like Beauty and the Beast and Peter Pan. To be honest, we’re actually more excited for this one than its bigger console brother.

Release date: November 20

Originally released for the PS2, we were big fans of Persona 4, an encouragingly mature RPG set in a small, everday Japanese town and high school. Persona 4: Golden has that same small town feel as you go about making friends and joining clubs, while simultaneously searching the dungeons of the otherworldly Midnight Channel and battling spectres representing your deepest secrets and fears. Expanded with new characters, settings, and anime cutscenes, the already rich role-playing game has gotten even deeper on its way to RPG-starved Vita owners.

Release date: November 20

One of the weirdest, yet most beloved cartoons in recent memory, Adventure Time is an adorably absurd show that’s soon going to infect gaming with its special brand of strangness. Adventure Time: Hey Ice King! Why'd You Steal Our Garbage?! is coming to the DS and 3DS, developed by WayForward (Mighty Switch Force, A Boy and His Blob), and we couldn’t think of a better developer for the game. With a fittingly nonsensical story about stolen garbage, the game is warmly reminiscent of Zelda II: Link’s Adventure, only way more algebraic.

Release date: November 20

The moment you see PlayStation All-Stars Battle Royale in action, the influence of Nintendo’s Smash Bros games is painfully obvious. But this may not be a bad thing, as PlayStation fans have long hoped for a similar brawler starring their favorite Sony mascots. The roster is exploding with Sony heavyweights like Nathan Drake, Ratchet, and Kratos, plus third-party stars like DmC’s Dante, Metal Gear Solid’s Raiden, and a Big Daddy from BioShock. Though we still have some balancing issues with the game, hopefully they’ll be cleared up in time for Vita players to face off against gamers with the PS3 version via cross-play.

Release date: November(?)

The Vita hasn’t had the easiest life since its launch this year, but getting an exclusive portable version of the best-selling franchise on Earth will likely improve those fortunes. Developed by Nihilistic, Call of Duty Black Ops: Declassified intends to pack a console experience into the Sony handheld, with the same intense firefights, single-player drama, and deep multiplayer experience the series is known for. The game doesn’t have a concrete release date yet, so we’re still wondering if the devs can fit all that--and hopefully some zombies--onto the Vita by the end of the year.

We hope this taught those of you that underestimate portable games a lesson, proving that a game can be big even if the screen is small. But did we miss any other important portable titles coming out before the end of December? Tell us in the comments!

If you need more help finding quality portable games, check out our lists of the best 3DS games and best PS Vita games.