SUPER3 is an open-source Sega Model 3 emulator for Android. It is based on the Supermodel emulator by trzy, with additional work derived from the model3emu-code-sinden fork (ARM branch).

This app does not include any games, ROMs, BIOS files, or copyrighted game content. You must supply your own legally obtained game ROMs.

Features

Sega Model 3 emulation (compatibility varies by title/device).
On-screen touch controls (Service/Test/Coin/Start and game-specific controls).
Virtual on-screen steering wheel for driving games (when supported by the title).
Save states (10 slots) with automatic screenshot thumbnails and tap-to-preview.
In-game pause/resume button.
Game flyers (front/back) in the launcher list.

Video settings (Resolution & Widescreen)

From the main game list, open the side menu (toolbar "menu" icon) and look under Video.

Resolution: Native (496x384) and integer scale options (2x through 8x). Higher values look sharper but can reduce performance.
Match device resolution: Sets the internal resolution to your device's exact pixel resolution (landscape). This also enables Widescreen and Wide background.
Widescreen: Expands the horizontal field of view (Supermodel -wide-screen). At very wide aspect ratios some games may cull objects at the edges.
Wide background: Stretches the 2D background layers when using widescreen (Supermodel -wide-bg).
Enhanced Real3D (experimental): Enables more desktop-like Real3D rendering (multi-pass transparency compositing + scroll fog). This can improve visuals in some games/areas, but may reduce performance on lower-end devices.

These settings are written to .../Android/data/<package>/files/super3/Config/Supermodel.ini (XResolution, YResolution, WideScreen, WideBackground, New3DAccurate).

Files & Storage

Save states and thumbnails are stored under the app's user data directory in Saves/ (for example: .../Android/data/<package>/files/super3/Saves/).
The app may offer an optional "sync"/export workflow using Android's Storage Access Framework. If enabled, the app only accesses the folder(s) you explicitly choose.

Flyers

Flyers are downloaded on-demand (when you switch to Flyer view) from https://github.com/izzy2lost/Model3flyers.
They are stored in .../Android/data/<package>/files/super3/Flyers/ as <game>_front.png and <game>_back.png.
You can replace or add files in that folder to customize artwork.

Legal / Google Play Policy Notes

No games included: SUPER3 does not ship with ROMs or game data, and it is not intended to facilitate piracy.
You must own the games: Only use ROMs you are legally permitted to use in your region.
Trademarks: "SEGA" and all associated game names, trademarks, and copyrighted works are the property of their respective owners.
Not affiliated: This project is not affiliated with or endorsed by SEGA or any arcade hardware manufacturer.

Privacy

SUPER3 can run offline for emulation, but Flyer view may download artwork from GitHub.
The app stores emulator settings, save states, and screenshots locally on your device.
If you opt into selecting a user folder for syncing/export, access is limited to the folder you select via the system file picker.

Upstream / Credits

Supermodel (upstream): https://github.com/trzy/Supermodel
Model3Emu fork used as reference (ARM branch): https://github.com/DirtBagXon/model3emu-code-sinden/tree/arm
SDL2 is used for the Android shell and input/audio/video integration.

License

This project is licensed under the GNU GPL v3.0 (see LICENSE). If you distribute builds (including on Google Play), GPL requires providing the corresponding source code to recipients.