A mixed reality port of Super Smash Bros. Melee to the Quest 3 platform. This is Smash like you've never seen it before, with fighters and stages floating in your room. Full Slippi support means that you can play online, and all 1-P content has been tailored to work great in MR.
You need your own disc image. No game data ships here. The decompiled game code is not licensed and is not relicensed by this project; only the port code is GPL-3.0-or-later. Details under License.
- Every stage and mode has been tweaked for mixed reality
- Full Slippi support, with Unranked and Direct modes included at launch
- Touch controller support, with rumble
- External gamepad support, with rumble
- Hand tracking for placing, turning and scaling the stage
- Stage placement: place the stage once with Place Stage and every stage starts there; any stage can be adjusted before its fight.
- Laser pointer menus: point and click through Melee's menus with the Touch controllers or hand tracking
- Asynchronous SpaceWarp (ASW) boosts the base framerate of 60FPS to an apparent 120FPS
- Dynamic resolution to keep performance at a stable lock, ranging from 80% to 130% display resolution.
- Spatial audio makes sound play properly from fighters, and extra stage effects (WIP) give spatial sound effects to stages where vanilla is missing them
- 2xMSAA anti-aliasing
- UCF 0.84 as Slippi plays it (dashback, shield drop, SDI, shield SDI, tumble, DBOOC fix, 1.0 cardinals), Slippi's no-wobbling, neutral spawn and freeze-glitch rules, on by default offline (two toggles on the Gameplay page)
- C-Stick in 1P: the C-stick attacks in Classic, Adventure, Training and the other 1P modes, as in VS (on by default; a Gameplay toggle)
- A Meta Quest 3 or 3S.
- Your own Super Smash Bros. Melee NTSC-U 1.02 disc image (
.iso,.gcm,.cisoor.rvz). The launcher checks it against the Redump database. - Developer mode on the headset, to sideload the APK.
- A Slippi account for online play (the same one Slippi Launcher uses).
- Enable developer mode for your headset in the Meta Horizon app.
- Install the APK from the
releases page with
SideQuest, or over USB:
adb install Xelee-Quest-arm64.apk - Copy your disc image onto the headset (for example into
Download, over USB or withadb push). - Open Xelee from your library (it's under Unknown Sources).
Yes, Claude wrote every line of code. It also wrote sound effect generators, built the XR UI that I needed, ran sweeps for hiding stage pieces for MR play, did comparative analysis and fix work against Dolphin, ran extensive optimization rounds, and a million other things. I’m a software engineer by trade and I’ve made my peace with it. LLMs allowed me to develop this into a polished and optimized release that I’m incredibly proud of, and I hope the end result speaks for itself.
The app opens as a flat panel in your home environment. Choose your disc with the system file picker, let it verify, and press Play: the game starts in your room on a floating screen. On the first launch (and after an update) the launcher builds the game's shaders, which takes a few minutes; let it finish for smooth first fights, or press Play to skip it.
Stages start small, a little below eye level and an arm's length ahead. Before each fight the stage waits for you to place it (see below); you can turn that off with Before each fight in the launcher.
The stage waits before each fight, with tip cards showing the gestures:
| Hands | Controllers | |
|---|---|---|
| Move | Point at the stage, pinch and drag | Point, hold grip and drag |
| Turn | Pinch with both hands and twist | Both grips and twist |
| Scale | Pinch with both hands, pull apart or together | Both grips, pull apart or together |
A or Start begins the fight, B resets the stage, and Y hides the tips (they stay hidden until you restart the app). A paused fight lets you grab the stage again.
Place Stage in Options (and in Online Mode) runs the same placement on a practice Battlefield and keeps the spot for every stage as a baseline. Online matches can't pause for placement, so Place Stage runs once on your first online match of each session.
Touch controllers play as player one:
| Touch | GameCube |
|---|---|
| Left stick | Control stick |
| Right stick | C-stick |
| A / B | A / B |
| X / Y | X / Y |
| Triggers | Analog L / R, digital past 90% |
| Either grip | Z |
| Left menu button | Start |
Point at the screen and pull a trigger to click a menu item. An external gamepad plays alongside the Touch controllers.
Sign in with Online Mode → Slippi → Login (your Slippi email and password), then pick Unranked or Direct. Direct uses connect codes, as in Slippi. Matches are compatible with players on Slippi Dolphin: same rules, same rollback netcode, same results.
Ranked, Teams and Party are not supported yet.
The launcher's Quest settings include:
- Resolution and SpaceWarp (ASW)
- Stage shadow: the stage's shadow on the real surface under it
- Before each fight: place the stage before every fight, or start right away
- Spatial audio and Expanded stage sounds
Melee's own Options cover rumble per player (on the Touch controllers and your gamepad) and Place Stage.
The Quest build cross-compiles the game with GCC from the Android NDK r26 and
Dawn with NDK r29; docs/quest-xr.md covers the build, the
renderer and the tuning knobs, and docs/building.md the
desktop builds. Aurora is a submodule, so clone with --recursive.
Xelee is built on melee-pc, a native PC port of Melee from the doldecomp/melee decompilation, running on aurora (GX and the Dolphin SDK on WebGPU through Dawn) and SDL3. Online play speaks Slippi's protocol and rules. Spatial audio is Steam Audio.
Three situations, spelled out in LICENSE.md: the decompiled
game code in src/melee and src/sysdolphin is not licensed and remains
the property of its copyright holders; the port code in src/pc, tools,
platforms, cmake and .github is GPL-3.0-or-later (COPYING);
bundled third-party components keep their own licenses. Because the game code
cannot be relicensed, the repository as a whole is not distributable under the
GPL. No game assets are in this repository.