Super Mario Galaxy 3 fanmade: Story & Galaxy Guide - Guide

Super Mario Galaxy 3 fanmade: Story & Galaxy Guide

Explore the Super Mario Galaxy 3 fanmade concept, including its story, controls, characters, items, galaxies, bosses, and progression.

2026-09-06
Super Mario Galaxy 3 Wiki Team
Quick Guide
  • Super Mario Galaxy 3 fanmade is an unofficial Mario platforming concept created for Fantendo.
  • Core story follows Mario, Rosalina, and the Lumas after Bowser steals the Comet Ruby.
  • Main hub is Rosalina’s Ice World, which replaces the damaged Comet Observatory.
  • Early galaxies include Yoshisaurus Galaxy and Green Green Galaxy.
  • Progression goal centers on collecting Power Stars across themed galaxies.

Super Mario Galaxy 3 fanmade Overview

Super Mario Galaxy 3 fanmade is an unofficial fan-created game concept presented on Fantendo. It imagines a third entry in the Super Mario Galaxy series, with Mario returning for another space adventure alongside Rosalina, the Lumas, and a young Luma companion. The concept lists Nightcap Devs. as the developer group, Nintendo Switch as the target platform, and platformer as the genre.

This project should be treated as a creative fan work rather than an official Nintendo release. Its appeal comes from expanding familiar Galaxy ideas with a new hub world, original galaxy names, additional enemies, and revised controls designed around the Switch hardware.

Fan Concept

  • Unofficial Mario adventure
  • Hosted as a Fantendo game idea
  • Built around Galaxy-style exploration

Core Objective

  • Explore multiple galaxies
  • Complete level objectives
  • Collect Power Stars

Central Conflict

  • Bowser steals the Comet Ruby
  • The Mushroom Kingdom is attacked
  • Rosalina needs Mario’s help
CategoryFanmade Concept Details
DeveloperNightcap Devs.
Platform conceptNintendo Switch
GenrePlatformer
Series connectionSuper Mario Galaxy
Main collectiblePower Stars
Main hubRosalina’s Ice World
Listed star count32 Power Stars currently
Unofficial Project

This page describes a fanmade concept, not a confirmed or commercially released Nintendo game. Treat its platform, content, and mechanics as part of the creative proposal.

A useful reference for the original concept is the Super Mario Galaxy 3 (Computerboy64) page on Fantendo. The page provides the project’s listed plot, gameplay ideas, characters, items, galaxies, and bosses.

Story and Setting

The story begins during the Star Festival. Mario receives a letter from Princess Peach and travels toward Mushroom Town before continuing to the castle. The celebration is interrupted when meteors begin falling from the sky and the clouds disappear, revealing a field of stars.

Bowser and Bowser Jr. then appear at the castle. Bowser has Princess Peach with him and reveals the Comet Ruby, a powerful artifact connected to Mario’s previous adventure in the Moon Kingdom. Bowser uses the ruby to shake the kingdom and begins another invasion. While Bowser Jr. fires cannonballs at Mario, a Luma appears and teleports Mario away from danger.

Mario later wakes in an icy environment surrounded by rabbits. Following them leads him to Rosalina, who explains that Bowser stole the Comet Ruby and destroyed the Comet Observatory. Rosalina retreats to a new galaxy that she calls her Ice World, creating the setting for Mario’s next journey.

Story StageMain EventGameplay Role
Star FestivalMario travels toward Peach’s castleOpening setup and tutorial
Castle attackBowser uses the Comet RubyIntroduction to the central threat
Mario’s escapeA Luma teleports Mario awayTransition into the adventure
Ice WorldMario meets Rosalina and the LumasEstablishes the main hub
Galaxy expeditionMario searches for Power StarsMain progression loop

The setting combines familiar Mario locations with a new cosmic refuge. Rosalina’s Ice World is not simply a level; it functions as the central place where Mario receives direction and tracks his recovered Power Stars. The destroyed Comet Observatory also gives the concept a clear narrative reason to introduce a different hub.

Story Focus

Keep the Comet Ruby, the damaged Comet Observatory, and Rosalina’s Ice World in mind when reading the concept. Together, they explain why the adventure begins in a new galaxy rather than the original observatory.

Gameplay and Control Guide

The proposed gameplay follows the structure of the original Super Mario Galaxy games. Mario explores separate galaxies, completes objectives, defeats enemies, and earns Power Stars. The concept currently lists 32 stars, although the project page presents the design as a fanmade work that may continue to develop.

The control scheme adapts Galaxy mechanics for Nintendo Switch hardware. The Galaxy Spin is mapped to a button, giving players a direct control option. Players who want a motion-based feel can also shake the Joy-Cons to perform the spin. Star Bits are designed around touchscreen input, allowing players to shoot them at enemies by touching the Switch screen.

1

Reach the Ice World

Follow the opening sequence from the Star Festival to Mario’s meeting with Rosalina. Her Ice World becomes the starting hub for the wider adventure.

2

Choose an Available Galaxy

Enter one of the accessible galaxy routes from the hub. Yoshisaurus Galaxy and Green Green Galaxy are the first named destinations in the concept.

3

Complete the Mission Objective

Follow the specific goal for the selected star, such as defeating a boss, reaching a marked location, rescuing a character, or collecting required objects.

4

Use the Correct Galaxy Ability

Apply the Galaxy Spin, Star Bits, power-ups, and environmental objects according to the challenge. Some enemies require spinning, while others require thrown objects.

5

Return with the Power Star

Finish the mission and add the recovered Power Star to the hub’s progression total before selecting the next route.

MechanicControl or FunctionBest Use
Galaxy SpinButton input or Joy-Con shakeStun enemies, break crystals, interact with objects
Star BitsTouchscreen inputShoot enemies and collect resources
Ground PoundStandard platforming actionAttack certain targets and trigger objects
Power StarsMission rewardsUnlock and track progression
Silver StarsCollect five in a missionReveal a hidden Power Star

The control design preserves the feel of the original Galaxy games while giving players an alternative to motion controls. The button-mapped spin is especially useful for players who prefer traditional inputs, while Joy-Con shaking provides an optional connection to the earlier games.

Progression Method

For efficient exploration, identify the mission goal before moving through a galaxy. Completing the objective is more important than collecting every visible item during the first attempt.

Characters, Enemies, and Power-Ups

Mario is the main playable character and retains most of his abilities from the previous Galaxy adventures. A young Luma hides beneath Mario’s hat and grants him the ability to perform the Galaxy Spin. Rosalina serves as the principal guide, while other Lumas appear throughout the galaxies and have their own stories.

The enemy roster mixes familiar Mario opponents with concept-specific variations. Goombas and Micro Goombas use straightforward pursuit behavior, while Paragoombas attack from the air. Snifits fire projectiles, Spiky Snifits require a different defeat method, and Gunner Guys launch barrages of bullets.

Character or EnemyRoleKey Interaction
MarioPlayable heroExplores galaxies and collects Power Stars
Young LumaMario’s companionEnables the Galaxy Spin
RosalinaGuide and protectorDirects Mario’s mission from the hub
LumasSupporting charactersAppear throughout galaxies
GoombaGround enemyEasily defeated during normal movement
SnifitRanged enemyCan be defeated with the Galaxy Spin
Spiky SnifitDefensive ranged enemyRequires throwing an object
Gunner GuyHeavy projectile enemyAvoid its barrage and attack safely

Bomu Bomu, Bob-ombs, and Firework Bob-ombs add explosive hazards. Regular Bob-ombs can be defused with the Galaxy Spin and then picked up for throwing. Firework Bob-ombs behave similarly, but their explosions remain dangerous for several seconds after detonation.

Item or Power-UpEffectRecommended Situation
Comet RubyArtifact connected to Bowser’s invasionStory progression and central conflict
CoinRestores health and supports extra-life progressGeneral exploration
Star BitCollectible and projectile resourceRanged attacks and resource collection
CrystalEncases characters or itemsBreak with the Galaxy Spin
Star MushroomAdds three HPRecovery before difficult encounters
Fire FlowerGrants fireballsFire-based targets and combat
Ice FlowerGrants ice balls and water skatingFrozen areas and water traversal
Silver StarPart of a five-item collectionReveals a Power Star

Fire Mario and Ice Mario do not have the same time pressure described for earlier versions of these power-ups. Fire Mario can throw fireballs, while Ice Mario can throw ice balls and skate across water. These abilities support both combat and movement, making power-up selection part of route planning.

Ability Matchups

Use the Galaxy Spin against enemies and objects that respond to spinning. When an opponent is protected, such as a Spiky Snifit, look for a throwable object instead of repeating the same attack.

Galaxies, Bosses, and Completion Checklist

Rosalina’s Ice World is the main hub for the currently described galaxy routes. The Tower is an important area within the hub because Rosalina is located there and keeps track of Mario’s recovered Power Stars.

Yoshisaurus Galaxy is described as the first galaxy. Its egg-shaped artifacts establish the area’s visual identity, and its missions introduce a mixture of boss combat, exploration, feeding objectives, and rescue scenarios.

Green Green Galaxy uses plants as platforms and places much of its action around a large tree and waterfall. Its missions emphasize reaching elevated locations, finding characters, dealing with a Wiggler, and transporting fruit.

GalaxyMission ThemesFeatured Challenge
Rosalina’s Ice WorldHub exploration and route selectionAccessing galaxies through the snowy base
Yoshisaurus GalaxyBoss fights, Yoshi-related objectives, rescue tasksMother Piranha and egg-shaped environments
Green Green GalaxyTree traversal, rabbit hunting, fruit tasksWiggler encounter and waterfall climb

Mother Piranha is the boss of the first Yoshisaurus Galaxy star. The encounter has three described phases: charging attacks, summoned Peewee Piranhas with tail strikes, and jumping attacks that create earthquakes. Prioritize movement and wait for a safe opportunity to use the Galaxy Spin on the tail.

The Wiggler boss appears in Green Green Galaxy after being awakened by the light. During the first phase, Mario uses a stretch plant to knock Wiggler over and then ground pounds one of its segments. Later phases increase its pursuit speed, making spacing and route awareness more important.

Essential Progression Checklist:

  • Reach Rosalina’s Ice World after the Star Festival opening
  • Visit the Tower and review the current Power Star total
  • Complete the first Yoshisaurus Galaxy objectives
  • Use the correct ability against each enemy type
  • Challenge Mother Piranha and the Green Green Galaxy Wiggler
  • Collect Silver Stars when a mission requires five
Boss Preparation

Boss patterns are described in phases, so avoid rushing the final hit. Learn whether the encounter rewards spinning, ground pounding, or environmental interaction before committing to an attack.

FAQ and Fanmade Project Notes

Q: Is Super Mario Galaxy 3 fanmade an official Nintendo game?

No. It is an unofficial fan-created concept published through Fantendo. The listed story, characters, galaxies, controls, and star count describe the proposed project rather than a confirmed Nintendo release.

Q: What is the main story of Super Mario Galaxy 3 fanmade?

Mario travels to the Star Festival, faces an invasion led by Bowser, and becomes involved in a conflict over the Comet Ruby. After the Comet Observatory is destroyed, Rosalina asks Mario to help from her new Ice World.

Q: What is the main hub in the fanmade concept?

Rosalina’s Ice World serves as the main hub. The Tower is a key area where Rosalina is located and where Mario’s recovered Power Stars are tracked.

Q: Which galaxies are described first?

Yoshisaurus Galaxy and Green Green Galaxy are the first named galaxy areas. Yoshisaurus Galaxy features egg-shaped environments and Mother Piranha, while Green Green Galaxy focuses on plant platforms, trees, waterfalls, and Wiggler.

The concept’s strongest identity comes from how it extends the established Galaxy formula without abandoning its main structure. It keeps Power Stars as the central reward, uses a hub to organize progression, and gives each galaxy a distinct visual and mission theme.

For readers documenting this fanmade project, the most reliable approach is to separate confirmed page details from interpretation. The original concept lists the current star total, named galaxies, boss phases, character roles, and item functions. Future revisions could expand or change those elements, so each page update should preserve the project’s unofficial status and identify newly added material clearly.

Wiki Editing Tip

When expanding this article, organize new information under story, gameplay, characters, items, galaxies, or bosses. This keeps fanmade details easy to verify and prevents speculative ideas from being presented as established content.