This colosseum becomes available to the player after they clear Crystal Colosseum. In this colosseum, the player must defeat six Trainers, followed by the Colosseum Leader, in Knockout Battles.
The player can use a Rental Pass with rental Pokémon or a custom Battle Pass with Pokémon from a connected copy of the DS games Diamond, Pearl, Platinum, HeartGold, and SoulSilver.
The first time the player challenges this colosseum, they will have to face Double Battles, using the Level 30 Open ruleset, on Rank 2. After the colosseum has been completed for the first time, the player can fight through ranks 3-8 in Single or Double Battles. Regardless of which battle type is chosen, winning on the selected rank will advance the rank by 1. After clearing all eight ranks, any subsequent challenges to this colosseum will always be Rank 8.
After the player completes Stargazer Colosseum the first time, the type of battle used in this colosseum changes to Little Battle, and the rank is reset to 1. The player can still select from Single or Double Battles, and the only level rule available is Level 5 Max, where all Pokémon must be between levels 1 and 5. A Rental Pass may not be used for this, requiring the player to create a custom Battle Pass using Pokémon from a connected DS game. Little Battles use ranks 1-4.
Once the Little Battle ruleset has been unlocked, the player is not able to access the Knockout Battle ruleset again. This means that if the player wishes to complete Ranks 2-8 of the Knockout Battle ruleset, they must do so before completing Stargazer Colosseum for the first time.
In Single Battles, the player and opposing Trainers all have six Pokémon, and must choose three to participate in the battle with. In Doubles, all Trainers have six Pokémon, and must choose four.
The Pokémon that can be used by opposing Trainers differ depending on the level mode being played, and whether the player is playing Singles or Doubles. The links below will show the Pokémon pools used by each.
Completing this colosseum for the first time unlocks Magma Colosseum and Sunset Colosseum.
The Trainers and their Pokémon seen during the player's first challenge always have the same moves and item, but random IVs and Natures.
| Pokémon | Ability | Item | Moves | HP EV | Atk EV | Def EV | SpA EV | SpD EV | Spe EV | ||||||||
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Luxio | Rivalry | Cheri Berry | Spark | Leer | Scary Face | Flash | 50 | 50 | 0 | 0 | 0 | 0 | ||||
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Flaaffy | Static | Pecha Berry | ThunderShock | Growl | Protect | Captivate | 50 | 0 | 0 | 50 | 0 | 0 | ||||
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Weepinbell | Chlorophyll | Persim Berry | Wrap | Acid | Double Team | Sweet Scent | 50 | 0 | 0 | 50 | 0 | 0 | ||||
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Metapod | Shed Skin | Iapapa Berry | Tackle | String Shot | Harden | N/A | 0 | 0 | 0 | 0 | 0 | 0 | ||||
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Delcatty | Cute Charm | Rawst Berry | Fake Out | Sing | Protect | Shock Wave | 50 | 50 | 0 | 0 | 0 | 0 | ||||
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Combusken | Blaze | Lum Berry | Quick Attack | Ember | Focus Energy | Scratch | 0 | 100 | 0 | 100 | 0 | 0 | ||||
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| Pokémon | Ability | Item | Moves | HP EV | Atk EV | Def EV | SpA EV | SpD EV | Spe EV | ||||||||
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Staravia | Intimidate | N/A | Aerial Ace | Thief | Agility | Double Team | 0 | 50 | 0 | 0 | 0 | 50 | ||||
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Machoke | Guts | Sitrus Berry | Vital Throw | Foresight | Scary Face | Fling | 100 | 100 | 0 | 0 | 0 | 0 | ||||
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Graveler | Rock Head | Pecha Berry | Rock Blast | Double Team | Defense Curl | Mud Sport | 50 | 0 | 0 | 0 | 50 | 0 | ||||
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Roselia | Natural Cure | Poison Barb | Poison Sting | Absorb | Protect | Flash | 66 | 0 | 66 | 0 | 66 | 0 | ||||
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Wigglytuff | Cute Charm | Cheri Berry | Sing | Fling | Defense Curl | Flash | 100 | 0 | 100 | 0 | 0 | 0 | ||||
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Butterfree | Compoundeyes | Pecha Berry | Silver Wind | Tailwind | Safeguard | Captivate | 50 | 0 | 50 | 0 | 0 | 0 | ||||
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| Pokémon | Ability | Item | Moves | HP EV | Atk EV | Def EV | SpA EV | SpD EV | Spe EV | ||||||||
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Bronzor | Levitate | Sitrus Berry | Hypnosis | Confuse Ray | Tackle | Rock Tomb | 0 | 0 | 0 | 0 | 0 | 0 | ||||
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Unown | Levitate | Sitrus Berry | Hidden Power | N/A | N/A | N/A | 0 | 0 | 0 | 0 | 0 | 0 | ||||
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Aipom | Run Away | N/A | Thief | Astonish | Protect | Captivate | 0 | 0 | 0 | 0 | 0 | 0 | ||||
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Lickitung | Own Tempo | Pecha Berry | Lick | Knock Off | Supersonic | Disable | 50 | 50 | 0 | 0 | 0 | 0 | ||||
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Skiploom | Chlorophyll | Aspear Berry | Bullet Seed | Synthesis | Stun Spore | Attract | 0 | 0 | 0 | 0 | 0 | 0 | ||||
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Kricketune | Swarm | Lum Berry | X-Scissor | Sing | Bide | Rock Smash | 100 | 100 | 0 | 0 | 0 | 0 | ||||
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| Pokémon | Ability | Item | Moves | HP EV | Atk EV | Def EV | SpA EV | SpD EV | Spe EV | ||||||||
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Poliwhirl | Water Absorb | Cheri Berry | Hypnosis | Protect | Water Pulse | Substitute | 0 | 0 | 0 | 0 | 0 | 0 | ||||
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Luvdisc | Swift Swim | Sitrus Berry | Sweet Kiss | Attract | Protect | Tackle | 0 | 0 | 0 | 0 | 0 | 0 | ||||
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Wormadam (Trash) | Anticipation | Cheri Berry | Mirror Shot | Captivate | Psych Up | Substitute | 0 | 0 | 50 | 0 | 50 | 0 | ||||
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Silcoon | Shed Skin | Sitrus Berry | Tackle | String Shot | Poison Sting | Harden | 0 | 0 | 0 | 0 | 0 | 0 | ||||
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Butterfree | Compoundeyes | Persim Berry | Silver Wind | Tailwind | PoisonPowder | Captivate | 50 | 0 | 50 | 0 | 0 | 0 | ||||
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Wigglytuff | Cute Charm | Lum Berry | Sing | Shock Wave | Disable | Flash | 100 | 0 | 100 | 0 | 0 | 0 | ||||
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| Pokémon | Ability | Item | Moves | HP EV | Atk EV | Def EV | SpA EV | SpD EV | Spe EV | ||||||||
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Machoke | Guts | Sitrus Berry | Vital Throw | Foresight | Scary Face | Fling | 100 | 100 | 0 | 0 | 0 | 0 | ||||
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Graveler | Rock Head | Sitrus Berry | Rock Blast | Captivate | Rock Polish | Defense Curl | 50 | 0 | 0 | 0 | 50 | 0 | ||||
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Staravia | Intimidate | N/A | Aerial Ace | Thief | Whirlwind | Agility | 0 | 50 | 0 | 0 | 0 | 50 | ||||
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Chimchar | Blaze | Oran Berry | Ember | Fury Swipes | Flame Wheel | Stealth Rock | 0 | 50 | 0 | 0 | 0 | 50 | ||||
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Butterfree | Compoundeyes | Sitrus Berry | Silver Wind | Tailwind | Stun Spore | Captivate | 50 | 0 | 50 | 0 | 0 | 0 | ||||
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Wigglytuff | Cute Charm | Zoom Lens | Sing | Drain Punch | Defense Curl | Flash | 100 | 0 | 100 | 0 | 0 | 0 | ||||
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| Pokémon | Ability | Item | Moves | HP EV | Atk EV | Def EV | SpA EV | SpD EV | Spe EV | ||||||||
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Plusle | Plus | Sitrus Berry | Encore | Helping Hand | Protect | Shock Wave | 66 | 0 | 66 | 0 | 66 | 0 | ||||
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Pachirisu | Run Away | Sitrus Berry | Spark | Growl | Endure | Swift | 0 | 0 | 0 | 0 | 0 | 0 | ||||
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Minun | Minus | Destiny Knot | Copycat | Charm | Protect | Fling | 66 | 0 | 66 | 0 | 66 | 0 | ||||
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Delibird | Vital Spirit | Mago Berry | Present | Protect | Thief | Substitute | 0 | 0 | 0 | 0 | 0 | 0 | ||||
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Sealeo | Thick Fat | Cheri Berry | Ice Ball | Rest | Growl | Captivate | 50 | 50 | 0 | 0 | 0 | 0 | ||||
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Luxio | Rivalry | Cheri Berry | Spark | Leer | Swagger | Substitute | 50 | 50 | 0 | 0 | 0 | 0 | ||||
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| Pokémon | Ability | Item | Moves | HP EV | Atk EV | Def EV | SpA EV | SpD EV | Spe EV | ||||||||
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Plusle | Plus | Lum Berry | Helping Hand | Thunderbolt | Encore | Sing | 0 | 0 | 0 | 0 | 0 | 100 | ||||
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Minun | Minus | Sitrus Berry | Helping Hand | Thunderbolt | Fake Tears | Trump Card | 0 | 0 | 0 | 0 | 0 | 100 | ||||
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Castform | Forecast | Damp Rock | Weather Ball | Rain Dance | Ominous Wind | Thunder | 0 | 0 | 0 | 100 | 0 | 0 | ||||
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Cherrim | Flower Gift | Cheri Berry | SolarBeam | Sunny Day | Natural Gift | Worry Seed | 0 | 0 | 0 | 100 | 0 | 0 | ||||
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Lopunny | Klutz | Iron Ball | Fling | Jump Kick | Fake Out | Drain Punch | 0 | 100 | 0 | 0 | 0 | 0 | ||||
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Shuckle | Gluttony | Leftovers | Power Trick | Gyro Ball | Toxic | Helping Hand | 0 | 0 | 100 | 0 | 0 | 0 | ||||
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