Metroid 2 3DS is a Tech Demo to envision how a 3DS Metroid Game would look like. Developer has later released the source with tools (requires OS X) for creating Enemies, Objects, Items and Maps.
Note: The project is discontinued due to the release of the official Metroid: Samus Returns for the 3DS.
Installation
Extract the 3ds_metroid.zip and put the resulting folder in your 3ds directory on your SD Card.
Run the Demo from your Homebrew Launcher (it will take some time to load from HB Launcher, but the game will not slow down).
Update from a previous Build:
You will need to replace the entire folder, not just the .3dsx. A lot of the files are updated/replaced when a new build is released. Replacing the .3dsx alone will most likely result in crashed or glitches.
Controls
Screenshots
Starting Area 
Jumping 
Charge Beam 
Enemy 
Ledge Grabbing 
Player Death Animation 
Save Menu 
Boot Warning 
Compatibility
Tested on a New Nintendo 3DS on System Version 10.3.
Known issues
- Hornoads Animation/Movement is not correct.
- Water movement sound is a placeholder.
- Map follow is disabled. The Options won't enable it (the feature is fairly bugged).
- Charging Animation while looking left/right is not positioned correctly.
- The .3dsx is 5.9 MB, had to implement the Player Spritesheet as a C-Source.
Changelog
2016/03/24
- Updated version.
2016/03/14
- Initial release.
Credits
Tools:
- Smealum, Yellows8 and the 3DS Community for the development environment.
- xerpi for sf2d and sfillib.
Graphics:
- RayJT9 for the Starship Graphics.
- Semijuggalo for the Beams FX Graphics.
- Infinity's End for the Metroid 2 Enemies Spritesheet.
- tango_311 for the Metroid Fusion/Zero Mission Tilesets.
- kenji imatake for the Barrier Suit Spritesheet.
- Skylights for the Zero Suit Spritesheet.
Sounds:
- ShadowOne333 for providing BGM Sounds and creating the Samus Intro Fanfare.
- Christopher Foss for the remade "Overworld Runner" Theme.
- Replica Thirteen for the Player Sound Effects.