Nintendo Game & Watch

The Game & Watch is a series of self-contained handheld LCD games by Nintendo, in which the first one was released all the way back on April 28, 1980. They are often seen as the precursor to the Game Boy/Color, although new Game & Watch games were still being released as late as 1991.

This system scrapes metadata for the “gameandwatch” group and loads the gameandwatch set from the currently selected theme, if available.

Grouped with the “lcdgames” group of systems.

.mgb may also be supported, needs confirmation

  • Accepted ROM formats: .mgw, .zip, .7z
  • Folder: /userdata/roms/gameandwatch
Emulators Accepted ROM formats
libretro: gw .mgw, .zip, .7z
MAME .zip, .7z

No Game & Watch emulator in Batocera needs a BIOS file to run.

Place your Game and Watch ROMs in /userdata/roms/gameandwatch.

RetroArch (formerly SSNES), is a ubiquitous frontend that can run multiple “cores”, which are essentially the emulators themselves. The most common cores use the libretro API, so that's why cores run in RetroArch in Batocera are referred to as “libretro: (core name)”. RetroArch aims to unify the feature set of all libretro cores and offer a universal, familiar interface independent of platform.

RetroArch configuration

RetroArch offers a Quick Menu accessed by pressing [HOTKEY] + South button (B SNES) which can be used to alter various things like RetroArch and core options, and controller mapping. Most RetroArch related settings can be altered from Batocera's EmulationStation.

Standardized features available to all libretro cores: gameandwatch.videomode, gameandwatch.ratio, gameandwatch.smooth, gameandwatch.shaders, gameandwatch.pixel_perfect, gameandwatch.decoration, gameandwatch.game_translation

ES setting name batocera.conf_key Description ⇒ ES option key_value
Settings that apply to all cores of this emulator
GRAPHICS BACKEND gameandwatch.gfxbackend Choose your graphics rendering
⇒ OpenGL opengl, Vulkan vulkan.
AUDIO LATENCY gameandwatch.audio_latency Audio latency in milliseconds, turn it up if you hear crackles
⇒ 256 256, 192 192, 128 128, 64 64, 32 32, 16 16, 8 8.
THREADED VIDEO gameandwatch.video_threaded Improves performance at the cost of latency and more video stuttering. Use only if full speed cannot be obtained otherwise.
⇒ On true, Off false.

libretro: gw

gw-libretro is a simulator and not an emulator. This means that the games that can be played with it aren't actually the original games, but recreations of the games combined with the original artwork and an image of the handheld.

libretro: gw configuration

There are no specific configuration settings for this emulator.

MAME, the Multiple Arcade Machine Emulator, is a multi-purpose emulation framework which facilitates the emulation of vintage hardware and software. Originally targeting vintage arcade machines, MAME has since absorbed the sister-project MESS (Multi Emulator Super System) to support a wide variety of vintage computers, video game consoles and calculators as well. MAME doesn't use an individual “core” for each system like RetroArch does, instead the ROM itself usually contains the necessary information to accurately emulate it, thus making it specific to the version of MAME it was made for. Overall it's a very complicated subject, we have a guide specific to arcade just for it.

MAME configuration

MAME offers a Menu in-game ([HOTKEY] + South button (B SNES) or [Tab] on the keyboard). This can be used to manually adjust inputs or game settings. If you're having issues with a specific game, check the MAMEdev FAQ for that game here. For MESS systems specifically, you might find more information on MESS's wiki. All options can also be edited by opening the mame.ini file.

Standardized features available to all versions of this emulator: gameandwatch.videomode, gameandwatch.decoration, gameandwatch.padtokeyboard

ES setting name batocera.conf_key Description ⇒ ES option key_value
Settings that apply to all versions of this emulator
GRAPHICS BACKEND Choose your graphics rendering
⇒ BGFX bgfx, Accel accel, OpenGL opengl.
BGFX BACKEND gameandwatch.bgfxbackend Choose your graphics API
⇒ MAME Detect automatic, OpenGL opengl, OpenGL ES gles, Vulkan vulkan.
BGFX VIDEO FILTER gameandwatch.bgfxshaders Apply a particular visual effect
⇒ Off None, Bilinear default, CRT Geom crt-geom, CRT Geom Deluxe crt-geom-deluxe, Super Eagle eagle, HLSL hlsl, HQ2X hq2x, HQ3X hq3x, HQ4X hq4x.
CRT SWITCHRES gameandwatch.switchres CRT monitor SwitchRes support
⇒ Off 0, On 1.
TATE MODE gameandwatch.rotation Rotating display to vertical mode rendering
⇒ Off None, Rotate 90 autoror, Rotate 270 autorol.
ALT DPAD MODE gameandwatch.altdpad If the D-Pad does not work properly
⇒ Off (Default) 0, DS3 Orientation 1, X360 Orientation 2.

The inputs are game specific. Press START to get an overlay like the following example:

  • systems/gameandwatch.txt
  • Last modified: 16 months ago
  • by atari