The Mega Dimension DLC for Pokémon Legends: Z-A brings the Hoenn trio - Groudon, Kyogre, and Rayquaza - to Kalos in Primal and Mega forms via Ultra Wormhole missions.
This guide is a step-by-step checklist covering prerequisites, donut recipes, portal locations, and battle plans for each encounter.
Order matters: catch Groudon and Kyogre first to unlock Rayquaza. Use the quick checklist below before entering any portal.
Quick Checklist (Read First)
Finish these steps before you start hunting so you do not waste a portal run:
- Clear the Mega Dimension main story.
- Complete Ultra Wormhole Investigation File #6 and catch Darkrai.
- Reach 75,000 Investigation Points from ★4+ Ultra Wormhole missions.
- Accept 'The Best Gift' quest at Hotel Z.
- Craft Omega and Alpha donuts; keep ingredients ready for Delta.
- Stock 50 Timer Balls, 30 Ultra Balls, status moves, and healing items.
- Catch Groudon and Kyogre first to unlock Rayquaza.
- Save before every Ultra Wormhole entry.
If you are missing Hyper Berries, farm ★4+ Hyperspace zones and open floating Poké Balls for drops.
The Hoenn Legendary Trio
Primal Groudon (Continent Pokémon)
The Continent Pokémon appears in Primal form with Ground/Fire typing and devastating Precipice Blades. In this DLC, Water moves are muted unless Groudon is stunned; Ice, Grass, and Ground coverage still matters.
Primal Kyogre (Sea Basin Pokémon)
The Sea Basin Pokémon manifests in Primal form with pure Water typing and the powerful Origin Pulse. Weak to Grass and Electric attacks.
Mega Rayquaza (Sky High Pokémon)
The Sky High Pokémon reaches Mega Evolution without needing a Mega Stone, featuring Dragon/Flying typing. Weak to Ice (4x), Dragon, Fairy, and Rock.
These three legendaries are among the most powerful Pokémon ever discovered, and catching all three unlocks special achievements and rewards in the Mega Dimension postgame.
Prerequisites Before You Begin
Essential Requirements
Complete DLC Main Story: You must finish the Mega Dimension main storyline before these legendary encounters become available.
Catch Darkrai: Complete the Ultra Wormhole Investigation File #6 and catch Darkrai as part of the prerequisite questline.
Accumulate 75,000 Investigation Points: Earn Ultra Wormhole Investigation Points by completing ★4+ difficulty Ultra Wormhole missions in Lumiose City.
Accept 'The Best Gift' Quest: This questline at Hotel Z unlocks access to all three legendary encounters once prerequisites are met.
Important: Catch Groudon and Kyogre before Rayquaza unlocks, and bring enough Ultra Balls, Timer Balls, and healing items.
Catching Primal Groudon
Ultra Wormhole Mission 13: Crimson Legend
Step 1: Accept the Quest
After accumulating 75,000 Investigation Points and completing Darkrai's questline, Ultra Wormhole Mission 13 'Crimson Legend' will become available at Hotel Z.
Step 2: Craft Omega Old-Fashioned Donut
Head to Hotel Z's kitchen and craft the Omega Old-Fashioned Donut using the following flavor requirements:
- • Sweet > 260
- • Spicy > 160
- • Sour > 160
- • Fresh > 260
- • Bitter > 20
Tip: Recommended Berry Combination: Hyper Tanga Berry x3, Hyper Payapa Berry x3, Hyper Roseli Berry x2. Any berries with the above flavor profile will work, but this combination reliably meets all requirements.
Step 3: Enter the Ultra Wormhole
Travel to Wild Area 6 (western section). Look for the distinctive red Ultra Wormhole portal. Give the Omega Donut to Hoopa to enter.
Step 4: Battle & Capture
Inside, you'll face Primal Groudon at Level 200. Reduce its HP carefully, inflict status conditions like Sleep or Paralysis, and use Timer Balls for the best catch rate.
Primal Groudon Battle Mechanics
- Water moves are blocked unless Groudon is stunned, so do not plan around Water damage.
- Ground is the most reliable weakness during the Primal phase.
- Mega Garchomp or Mega Zygarde are consistent counters.
- Lava tiles glow before they erupt; sprint or dodge out of them.
- Two-phase fight: regular Groudon first, Primal Groudon second. Save recovery for the second phase.
Catching Primal Kyogre
Ultra Wormhole Mission 14: Indigo Legend
Step 1: Accept the Quest
Similar to Groudon, Ultra Wormhole Mission 14 'Indigo Legend' requires 75,000 Investigation Points and Darkrai completion.
Step 2: Craft Alpha Old-Fashioned Donut
At Hotel Z's kitchen, prepare the Alpha Old-Fashioned Donut with these flavor specifications:
- • Sweet > 50
- • Spicy > 50
- • Sour > 210
- • Fresh > 370
- • Bitter > 180
Tip: Recommended Berry Combination: Hyper Qualot Berry x3, Hyper Wepear Berry x2, Hyper Pamtre Berry x2. Any berries with the above flavor profile will work.
Step 3: Enter the Ultra Wormhole
Navigate to Wild Area 5 and locate the blue Ultra Wormhole portal. Present the Alpha Donut to Hoopa for entry.
Step 4: Battle & Capture
Primal Kyogre awaits at Level 200 inside the wormhole. Use Grass or Electric-type Pokémon to exploit its weaknesses. Status moves and Timer Balls will maximize your success rate.
Catching Mega Rayquaza
Ultra Wormhole Mission 12: The Best Gift
Prerequisite: Catch Both Groudon & Kyogre
Rayquaza's encounter ONLY unlocks after successfully catching both Primal Groudon and Primal Kyogre. Corbeau will then provide the Delta Donut recipe.
Step 1: Receive the Quest Update
After catching both titans, return to Hotel Z. Corbeau will update 'The Best Gift' quest and teach you the Delta Old-Fashioned Donut recipe.
Step 2: Craft Delta Old-Fashioned Donut
The Delta Donut requires the most precise flavor balance and special ingredients including Olivia Oil:
- • Sweet > 120
- • Spicy > 40
- • Sour > 340
- • Fresh > 390
- • Bitter > 40
Step 3: Access the Sky Pillar Portal
Head to the rooftop of Hotel Z. An Emerald-colored Ultra Wormhole will appear. Give Hoopa the Delta Donut to access Hyperspace Sky Pillar.
Step 4: Two-Phase Battle
First, defeat regular Rayquaza (Level 200). Then immediately face Rogue Mega Rayquaza (Level 200). After defeating both forms, you can catch Rayquaza at Level 80. Bring Ice-type moves—Mega Rayquaza has a 4x Ice weakness despite Delta Stream reducing other Flying weaknesses.
Rayquaza Battle Mechanics
- Delta Stream removes Flying-type weaknesses, but Ice remains a 4x weakness.
- Bring Ice or Fairy specialists like Meganium, Xerneas, or Mega Glalie.
- Back-to-back phases with no downtime; manage HP and PP carefully.
Battle Strategies & Pro Tips
Use these quick battle rules to maximize capture consistency:
Primal Groudon Counter Strategy
Skip Water damage and lean on Ground attackers like Mega Garchomp or Mega Zygarde. Watch for Precipice Blades hitting the whole team and dodge lava eruptions. Use Wide Guard if your team has it.
Primal Kyogre Counter Strategy
Grass and Electric types shine. Origin Pulse hits multiple targets, so spread your team positioning.
Mega Rayquaza Counter Strategy
Ice and Fairy pressure are best. Keep a fast debuff or status user ready for the second phase.
Universal Catching Tips
Save before every entry. Stock at least 50 Timer Balls, 30 Ultra Balls, and a few Dusk Balls. Status moves like Spore, Thunder Wave, or Hypnosis boost catch rates; False Swipe helps with precision.
For more competitive strategies, check our Mega Evolution & Primal Reversion Guide or explore Competitive Team Building Guide or explore Advanced Type Matchups to master these legendaries in battle.
Frequently Asked Questions
What are the prerequisites for catching the Hoenn legendary trio?
Finish the Mega Dimension main story, catch Darkrai via Investigation File #6, reach 75,000 Investigation Points from ★4+ missions, and accept 'The Best Gift' at Hotel Z.
Do I need to catch them in a specific order?
Groudon and Kyogre can be caught in any order, but Rayquaza only unlocks after both are captured.
What levels are the legendary Pokémon?
Primal Groudon and Primal Kyogre appear at Level 200. Rayquaza appears at Level 200 in both forms, then is captured at Level 80 after both phases.
Can these legendaries be shiny?
Yes! All three have shiny variants available. However, they are shiny-locked during the first encounter. To shiny hunt them, you must complete the postgame and unlock repeatable Ultra Wormhole missions.
Where do I find the special berries for the donuts?
Farm ★4+ Ultra Wormhole missions in the Mega Dimension areas of Lumiose City. Hyper Berries drop from floating Poké Balls, and golden Poké Balls at zone completion often yield rarer berries.
Final Charged Notes
Catching Primal Groudon, Primal Kyogre, and Mega Rayquaza is the ultimate Mega Dimension DLC challenge. With the right prep, recipes, and battle plan, you can add all three titans to your team.
Save before each encounter, stock your supplies, and stay patient. These are among the most powerful Pokémon in existence. Good luck, Trainer!