Pokémon Omega Ruby and Alpha Sapphire: Hoenn, Primal Reversion and the Delta Episode

Remaking a 2003 game is easy. Remaking it while adding a never-before-seen phenomenon, an entire new chapter of story and the ability to soar over the region on the back of a legendary is something else entirely. Omega Ruby and Alpha Sapphire are arguably the most ambitious remakes the series has ever produced.

Contents

• Nintendo 3DS, November 2014: Hoenn returns eleven years later
• Hoenn, the region of water and fire
• Primal Reversion is not a Mega Evolution
• The detail everyone misses: the orbs switched sides
• Twenty more Megas, free flight and the PokéNav Plus
• The Delta Episode, the best addition ever made to a Pokémon remake
• Starters and legendaries: a massive trophy list
• Version exclusives
• What players remember
• The legacy of Omega Ruby and Alpha Sapphire
• Omega Ruby and Alpha Sapphire at a glance
• Frequently Asked Questions

Nintendo 3DS, November 2014: Hoenn returns eleven years later

Both versions launched on November 21, 2014, in Japan, North America and Australia, followed by November 28, 2014, in Europe. They run on Nintendo 3DS and Nintendo 2DS, and reuse the 3D engine introduced a year earlier by X and Y.

They are remakes of Pokémon Ruby and Sapphire, released in 2003 on Game Boy Advance. Eleven years separate the original from its reimagining — a record at the time, which Let's Go, Pikachu! and Let's Go, Eevee! would break as early as 2018, followed by Brilliant Diamond and Shining Pearl in 2021 — and that gap left room for a top-to-bottom overhaul rather than a simple facelift.

Demand was strong. Hoenn was the only region that had stayed out of reach since the Game Boy Advance, and the community had been clamoring for its return for years under a slogan that had turned into a running joke. Nintendo answered with two games rather than a third version.

The success was clear-cut: 14.68 million copies according to Nintendo's figures as of March 31, 2026, placing these remakes just behind X and Y and Sun and Moon among the Pokémon games on the Nintendo 3DS.

Hoenn, the region of water and fire

Hoenn is a largely maritime tropical region, modeled on the Japanese island of Kyūshū rotated a quarter turn. It has an active volcano, a desert, a rainforest, a space center and an entire city built at the bottom of a crater: it's one of the most varied maps in the series.

The story pits two organizations with warped environmental ambitions against each other. Team Magma, led by Maxie, wants to expand the landmass by awakening Groudon; Team Aqua, led by Archie, wants instead to expand the oceans with the help of Kyogre.

The eight Gyms are run by Roxanne in Rustboro City (Rock), Brawly in Dewford Town (Fighting), Wattson in Mauville City (Electric), Flannery in Lavaridge Town (Fire), Norman in Petalburg City (Normal), Winona in Fortree City (Flying), Tate and Liza in Mossdeep City (Psychic) and Wallace in Sootopolis City (Water). The hero's own father runs the fifth Gym, a situation unique in the series.

Waiting at the top of the League is Steven Stone, a stone collector and the son of a company president, whose Metagross has made generations of players sweat.

Primal Reversion is not a Mega Evolution

It's the most widespread misconception about these games. Groudon and Kyogre don't Mega Evolve: they undergo Primal Reversion, a phenomenon presented as a return to their primal state, the one they were in before the world lulled them to sleep.

The difference isn't just cosmetic. Whereas Mega Evolution requires a Mega Stone held by the Pokémon and a Key Stone carried by the Trainer, Primal Reversion is triggered simply by a held item: the Red Orb for Primal Groudon, the Blue Orb for Primal Kyogre — the same two orbs as in 2003, which the French versions renamed for the occasion.

💠 Primal Reversion only takes a held item — the Red Orb for Primal Groudon, the Blue Orb for Primal Kyogre — whereas Mega Evolution demands a Key Stone on the Trainer. As for you, the little things you keep on you don't stay cupped in your palm: they end up in a coin purse.

The consequence in battle: the rule that limits each Trainer to a single Mega Evolution per battle doesn't apply here. A player can therefore trigger a Primal Reversion and a Mega Evolution in the same match, which left a lasting mark on competitive play.

The result is spectacular. Primal Groudon becomes Ground- and Fire-type and summons extremely harsh sunlight that rain can no longer cancel out; Primal Kyogre summons heavy rain that the sun can no longer dispel. Two weather conditions that literally cannot be dislodged, a first in the history of the series.

The detail everyone misses: the orbs switched sides

In Ruby, Sapphire and Emerald, each organization stole the orb of the opposite color to its own. Team Magma, red and devoted to Groudon, seized the Blue Orb; Team Aqua, blue and devoted to Kyogre, stole the Red Orb.

Omega Ruby and Alpha Sapphire flip the mechanic. Each team now steals the orb of its own color: Team Magma takes the Red Orb in Omega Ruby, Team Aqua the Blue Orb in Alpha Sapphire.

This change isn't arbitrary. It follows directly from Primal Reversion: since the Red Orb is what awakens Groudon and the Blue Orb what awakens Kyogre, each organization naturally had to seize the item tied to its own god.

It's the kind of subtle fix that separates a true remake from a port. The world's internal logic was rewritten to fit a mechanic invented eleven years later, and nobody lost anything in the process.

Twenty more Megas, free flight and the PokéNav Plus

These remakes add 20 new Mega Evolutions to the 28 from X and Y, bringing the sixth generation's total to 48 forms across 46 species. Among them are Metagross, Salamence, Altaria, Gallade and even Pidgeot and Beedrill.

The big exploration innovation is called Soaring, which everyone just calls free flight. After a certain point in the story, the Eon Flute summons Latios or Latias, on whose back you fly over Hoenn in real time, with no loading screens, and land wherever you like.

Flying gives you access to fleeting locations that only appear from time to time above the region, where you can catch Pokémon not found in Hoenn — including a good share of the legendaries from previous generations. It's the biggest pool of rarities ever offered in a remake.

The PokéNav becomes the PokéNav Plus, with four modules: AreaNav for the map, DexNav for spotting the Pokémon in the area, PlayNav for online features and BuzzNav for TV channels. The DexNav in particular lets you track down Hidden Abilities and rare moves in the tall grass.

Secret Bases make a big comeback: you can share them with other players, recruit visitors as companions and turn yours into a custom Gym. Pokémon Contests, meanwhile, get a complete overhaul, with costumes for the Trainer.

👗 Omega Ruby and Alpha Sapphire bring Pokémon Contests back to the stage with costumes for the Trainer; you may not have a podium to climb, but a pair of earrings gives an outfit the same playful touch.

The Delta Episode, the best addition ever made to a Pokémon remake

Once the League is beaten, a brand-new chapter opens. An asteroid is hurtling toward Hoenn, and the only creature capable of stopping it is Rayquaza, the dragon that lives in the upper atmosphere. The player sets out to find it at the top of a dizzyingly tall tower.

The common thread of this chapter is Zinnia, the last heir of a people who kept the memory of the catastrophe alive. Her character, ambiguous and full of pain, is one of the series' rare antagonists you end up understanding rather than fighting.

Rayquaza has no Mega Stone. To access its Mega Evolution, it has to know Dragon Ascent — a one-of-a-kind exception in the entire series, making Mega Rayquaza the only Pokémon that can transform while holding another item.

The climax plays out in space: riding Mega Rayquaza, the hero leaves the atmosphere and shatters the asteroid. Out of the debris then bursts Deoxys, which attacks immediately — a zero-gravity boss battle, something never before seen in the franchise.

This epilogue did a lot for these remakes' reputation. It doesn't just add hours of gameplay: it finally ties Hoenn's myths, the legendaries from space and the Mega Evolution phenomenon together into a single, unified story.

Starters and legendaries: a massive trophy list

The starter trio is the same as in 2003: Treecko the gecko, Torchic the chick and Mudkip the amphibian. Their final forms, Sceptile, Blaziken and Swampert, all get a Mega Evolution.

When it comes to legendaries, Hoenn is unusually rich. Besides the trio of titans Regirock, Regice and Registeel, you can catch the duo Latios and Latias, one of which is given to you during the story.

The Mythical Jirachi remains event-only, but Deoxys becomes catchable in the game at the end of the Delta Episode. It's the first time it can be obtained without going through an event.

Add to that the legendaries from other regions that you can reach from the sky, and the trophy list outstrips anything the series had offered before. Diancie, distributed at launch, even gets its own Mega Evolution here.

Version exclusives

The key structural difference concerns the two titans: Groudon belongs to Omega Ruby, Kyogre to Alpha Sapphire. The story therefore follows Team Magma in one and Team Aqua in the other, with different points of view and different places to visit.

The Eon duo is split as well: Latios accompanies the player in Omega Ruby, Latias in Alpha Sapphire. Since this Pokémon is your flying mount, the look of free flight changes from one version to the other.

The old third-generation rivals are present and accounted for: Zangoose in Omega Ruby, Seviper in Alpha Sapphire, two sworn enemies that have never shared the same cartridge.

🎒 Zangoose in Omega Ruby, Seviper in Alpha Sapphire: the two sworn enemies have never fit on the same cartridge. Your own two cartridges, on the other hand, fit side by side in a pencil case tucked at the bottom of your bag.

On top of that come opposing fossil lines and a batch of legendaries from other regions, exclusive to one version or the other, in the places you reach by air. As always, a trade is all it takes to sort everything out.

What players remember

Free flight left a lasting impression. Taking off from a route, crossing Hoenn without a single break and landing on a barely visible island: the series had never delivered that sense of freedom, and it would take the open-world games to capture it again.

The Delta Episode, for its part, is regularly cited as the best post-League content in the franchise. It gives Zinnia rare depth, twists the usual formula and ends with a scene in space that nobody expected from a Pokémon game.

The main criticism is about what's missing. These remakes are based on Ruby and Sapphire, not Emerald: no Battle Frontier, and no final double showdown against both organizations. This absence of the Battle Frontier remains the number-one disappointment for longtime players.

Finally, the difficulty inherits the flaws of the sixth generation, with a very generous Exp. Share. You get through Hoenn faster than in 2003, with a team that is consistently overleveled unless you set yourself some rules.

The legacy of Omega Ruby and Alpha Sapphire

These games set a standard: since then, nobody expects a remake to simply copy the original; it's expected to add a layer of story and a brand-new mechanic. The bar set by the Delta Episode has never been reached again by the remakes that followed.

Primal Reversion, for its part, has never been used again. Only two Pokémon have access to it, making it the most exclusive phenomenon in the series — and a rules curiosity that competitive players still bring up.

Mega Rayquaza left an even bigger mark: its power led competitive rule-makers to put it in a class of its own, above the other legendaries. Few Pokémon can boast of having shaken up the rulebooks all on their own.

And finally there's Hoenn itself, a long-unloved region that has become an object of unabashed nostalgia. If you'd like to keep it going at home, our selection of legendary Pokémon and our range of posters do justice to its dragons and its titans.

Omega Ruby and Alpha Sapphire at a glance

Frequently Asked Questions

• Is Primal Reversion a Mega Evolution?
  No, they are two distinct phenomena. Primal Reversion only applies to Groudon and Kyogre, and is triggered by a held item, the Red Orb or the Blue Orb, with no Mega Stone or Key Stone. It therefore escapes the rule that limits a Trainer to a single Mega Evolution per battle: you can trigger a Primal Reversion and a Mega Evolution in the same battle.
• Why do the Teams steal a different orb in the remakes?
  In Ruby, Sapphire and Emerald, each organization stole the orb of the opposite color to its own: Team Magma took the Blue Orb, Team Aqua the Red Orb. In Omega Ruby and Alpha Sapphire, each one steals the orb of its own color, because these items (renamed Gemme Rouge and Gemme Bleue in the French versions) now trigger Primal Reversion: the Red Orb awakens Groudon, the Blue Orb awakens Kyogre.
• What is the Delta Episode?
  It's a brand-new chapter that unlocks after the Pokémon League. An asteroid threatens Hoenn, and the player sets out to find Rayquaza to stop it, guided by Zinnia, the last heir of a people who kept the memory of the catastrophe alive. The finale takes place in space, on the back of Mega Rayquaza, and ends with a battle against Deoxys, which bursts out of the debris.
• How do you Mega Evolve Rayquaza?
  Rayquaza has no Mega Stone. It just needs to know the move Dragon Ascent, learned during the Delta Episode. It's a one-of-a-kind exception in the series: Mega Rayquaza is the only Pokémon that can Mega Evolve while holding another item, which explains its dominance in competitive play.
• What's the difference between Omega Ruby and Alpha Sapphire?
  Groudon is caught in Omega Ruby and Kyogre in Alpha Sapphire, and the story follows Team Magma or Team Aqua respectively. The Eon duo is split too: Latios in Omega Ruby, Latias in Alpha Sapphire, which changes your free-flight mount. On top of that come classic exclusives such as Zangoose in Omega Ruby and Seviper in Alpha Sapphire.
• Do Omega Ruby and Alpha Sapphire include Emerald's Battle Frontier?
  No. These games are remakes of Ruby and Sapphire, not Emerald, and the Battle Frontier isn't in them. It's the most common criticism leveled at these versions, despite everything else they add: Primal Reversion, free flight, twenty additional Mega Evolutions and the Delta Episode.

In short

Omega Ruby and Alpha Sapphire don't just bring Hoenn up to date. They graft onto it a mechanic the series has never used again, a story chapter that ends in space and an unprecedented freedom of exploration on the back of a legendary.

They'll always be missing the Battle Frontier, and the difficulty stays very gentle. But for the generosity of their content and the daring of the Delta Episode, these two cartridges remain the benchmark for a successful remake.