Libretro Flycast is a multi-platform Sega Dreamcast emulator able to emulate the Sammy Atomiswave.
This core is under GPLv2 license.
 Compatibility| RPI0/RPI1 | RPI3 | RPI4/RPI400 | RPI5 | ODROID XU4 | OGA/OGS/RG351 | PC | RG353 | 
|---|---|---|---|---|---|---|---|
| ❌ | ❌ | ✅ | ✅ | ✅ | ✅ 🐌 | ✅ | ✅ | 
🐌 Low performances but playable
 Features| Feature | Supported | 
|---|---|
| Restart | ✔ | 
| Screenshots | ✔ | 
| Saues | ✔ | 
| Core Options | ✔ | 
| RetroArch Cheats | ✔ | 
| Controls | ✔ | 
| Remapping | ✔ | 
| Rumble | ✔ | 
| Disk Control | ✔ | 
| Filename | Description | MD5 | Provided | 
|---|---|---|---|
| awbios.zip | Atomiswave BIOS from MAME | 0ec5ae5b5a5c4959fa8b43fcf8687f7c | ❌ | 
Put your bios like this:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 bios
┃ ┃ ┃ ┣ 📁 dc
┃ ┃ ┃ ┃ ┣ 🗒 awbios.zip
 RomsLibretro Flycast is based on the Romset of MAME but also on NullDC formats for its Atomiswave part.
Roms must have this extension:
Only Atomiswave roms from a RomSet MAME 0.135 or higher are compatible.
We recommend the RomSet Mame 0.235 which will bring a lot of additional compatibilities.
For more information on the current RomSet version, see the [MameDev] page (https://www.mamedev.org/release.html).
To sort your arcade roms, the dat file is available in the folder:
/recalbox/share/bios/dc/
Put your roms like this:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 roms
┃ ┃ ┃ ┣ 📁 atomiswave
┃ ┃ ┃ ┃ ┣ 🗒 game.zip
These roms are compatible with Flycast but less reliable than roms from a MAME set.
The NullDC roms are in the format :
.bin + .lst.
Put your roms like this:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 roms
┃ ┃ ┃ ┣ 📁 atomiswave
┃ ┃ ┃ ┃ ┣ 📁 game
┃ ┃ ┃ ┃ ┃ ┣ 🗒 game.bin
┃ ┃ ┃ ┃ ┃ ┣ 🗒 game.lst
 Advanced configuration of the emulatorTo be able to keep your custom configurations during an upgrade, we advise you to use our configuration override feature.
You can configure various options in two different ways.
┣ 📁 RetroArch Menu
┃ ┣ 📁 Core options
┃ ┃ ┣ 🧩 Name_option
retroarch-core-options.cfg:┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 system
┃ ┃ ┃ ┣ 📁 configs
┃ ┃ ┃ ┃ ┣ 📁 retroarch
┃ ┃ ┃ ┃ ┃ ┣ 📁 cores
┃ ┃ ┃ ┃ ┃ ┃ ┣ 🧩 retroarch-core-options.cfg
| Options | Options values | Variables (for configuration override) | Variables values | 
|---|---|---|---|
| Region | Japon / États-Unis ✅ / Europe / Par défaut | 
reicast_region | 
Japan / USA / Europe / Default | 
| Enable DSP | Disabled / Enabled ✅ | 
reicast_enable_dsp | 
disabled / enabled | 
| Allow NAOMI Service Buttons | Disabled ✅ / Enabled | 
reicast_allow_service_buttons | 
disabled / enabled | 
| Set NAOMI Games to Free Play | Disabled / Enabled ✅ | 
reicast_force_freeplay | 
disabled / enabled | 
| Broadband Adapter Emulation | Disabled ✅ / Enabled | 
reicast_emulate_bba | 
disabled / enabled | 
| Enable UPnP | Disabled / Enabled ✅ | 
reicast_upnp | 
disabled / enabled | 
| Internal Resolution | 320x240 / 640x480 ✅ / 800x600 / 960x720 / 1024x768 / 1280x960 / 1440x1080 / 1600x1200 / 1920x1440 / 2560x1920 / 2880x2160 / 3200x2400 / 3840x2880 / 4480x3360 / 5120x3840 / 5760x4320 / 6400x4800 / 7040x5280 / 7680x5760 / 8320x6240 / 8960x6720 / 9600x7200 / 10240x7680 / 10880x8160 / 11520x8640 / 12160x9120 / 12800x9600 | 
reicast_internal_resolution | 
320x240 / 640x480 / 800x600 / 960x720 / 1024x768 / 1280x960 / 1440x1080 / 1600x1200 / 1920x1440 / 2560x1920 / 2880x2160 / 3200x2400 / 3840x2880 / 4480x3360 / 5120x3840 / 5760x4320 / 6400x4800 / 7040x5280 / 7680x5760 / 8320x6240 / 8960x6720 / 9600x7200 / 10240x7680 / 10880x8160 / 11520x8640 / 12160x9120 / 12800x9600 | 
| Screen Orientation | Horizontal ✅ / Vertical | 
reicast_screen_rotation | 
horizontal / vertical | 
| Alpha Sorting | Per-Strip (fast, least accurate) / Per-Triangle (normal) ✅ / Per-Pixel (accurate, but slower) | 
reicast_alpha_sorting | 
per-strip (fast, least accurate) / per-triangle (normal) / per-pixel (accurate) | 
| Full framebuffer emulation | Disabled ✅ / Enabled | 
reicast_emulate_framebuffer | 
disabled / enabled | 
| Enable RTT (Render To Texture) Buffer | Disabled ✅ / Enabled | 
reicast_enable_rttb | 
disabled / enabled | 
| Mipmapping | Disabled / Enabled ✅ | 
reicast_mipmapping | 
disabled / enabled | 
| Fog Effects | Disabled / Enabled ✅ | 
reicast_fog | 
disabled / enabled | 
| Volume Modifier | Disabled / Enabled ✅ | 
reicast_volume_modifier_enable | 
disabled / enabled | 
| Anisotropic Filter | Disabled / 2 / 4 ✅ / 8 / 16 | 
reicast_anisotropic_filtering | 
off / 2 / 4 / 8 / 16 | 
| Texture Filtering | Default ✅ / Force Nearest-Neighbor / Force Linear | 
reicast_texture_filtering | 
0 / 1 / 2 | 
| Delay Frame Swapping | Disabled ✅ / Enabled | 
reicast_delay_frame_swapping | 
disabled / enabled | 
| Detect Frame Rate Changes | Disabled ✅ / Enabled | 
reicast_detect_vsync_swap_interval | 
disabled / enabled | 
| PowerVR2 Post-processing Filter | Disabled ✅ / Enabled | 
reicast_pvr2_filtering | 
disabled / enabled | 
| Texture Upscaling (xBRZ) | Disabled ✅ / x2 / x4 / x6 | 
reicast_texupscale | 
disabled / 2 / 4 / 6 | 
| Texture Upscaling Max. Filtered Size | 256 / 512 / 1024 | 
reicast_ | 
256 / 512 / 1024 | 
| Native Depth Interpolation | Disabled ✅ / Enabled | 
reicast_native_depth_interpolation | 
disabled / enabled | 
| Threaded Rendering | Disabled / Enabled ✅ | 
reicast_thraded_rendering | 
disabled / enabled | 
| Auto Skip Frame | Disabled ✅ / Normal / Maximal | 
reicast_auto_skip_frame | 
disabled / some / more | 
| Frame Skipping | Disabled ✅ / 1 / 2 / 3 / 4 / 5 / 6 | 
reicast_frame_skipping | 
disabled / 1 / 2 / 3 / 4 / 5 / 6 | 
| Widescreen Cheats (Restart Required) | Disabled ✅ / Enabled | 
reicast_widescreen_cheats | 
disabled / enabled | 
| Widescreen Hack | Disabled ✅ / Enabled | 
reicast_widescreen_hack | 
disabled / enabled | 
| SH4 CPU under/overclock | 100 MHz / 110 MHz / 120 MHz / 130 MHz / 140 MHz / 150 MHz / 160 MHz / 170 MHz / 180 MHz / 190 MHz / 200 MHz / 210 MHz / 220 MHz / 230 MHz / 240 MHz / 250 MHz / 260 MHz / 270 MHz / 280 MHz / 290 MHz / 300 MHz | 
reicast_sh4clock | 
100 / 110 / 120 / 130 / 140 / 150 / 160 / 170 / 180 / 190 / 200 / 210 / 220 / 230 / 240 / 250 / 260 / 270 / 280 / 290 / 300 | 
| Load Custom Textures | Disabled ✅ / Enabled | 
reicast_custom_textures | 
disabled / enabled | 
| Dump Textures | Disabled ✅ / Enabled | 
reicast_dump_textures | 
disabled / enabled | 
| Analog Stick Deadzone | 0% / 5% / 10% / 15% ✅ / 20% / 25% / 30% | 
reicast_analog_stick_deadzone | 
0% / 5% / 10% / 15% / 20% / 25% / 30% | 
| Trigger Deadzone | 0% ✅ / 5% / 10% / 15% / 20% / 25% / 30% | 
reicast_trigger_deadzone | 
0% / 5% / 10% / 15% / 20% / 25% / 30% | 
| Digital Triggers | Disabled ✅ / Enabled | 
reicast_digital_triggers | 
disabled / enabled | 
| Broadcast Digital Outputs | Disabled ✅ / Enabled | 
reicast_network_output | 
disabled / enabled | 
| Gun Crosshair 1 Display | Disabled ✅ / White / Red / Green / Blue | 
reicast_lightgun1_crosshair | 
disabled / White / Red / Green / Blue | 
| Gun Crosshair 2 Display | Disabled ✅ / White / Red / Green / Blue | 
reicast_lightgun2_crosshair | 
disabled / White / Red / Green / Blue | 
| Gun Crosshair 3 Display | Disabled ✅ / White / Red / Green / Blue | 
reicast_lightgun3_crosshair | 
disabled / White / Red / Green / Blue | 
| Gun Crosshair 4 Display | Disabled ✅ / White / Red / Green / Blue | 
reicast_lightgun4_crosshair | 
disabled / White / Red / Green / Blue | 
| VMU Sounds | Disabled ✅ / Enabled | 
reicast_vmu_sound | 
disabled / enabled | 
| VMU Screen 1 Display | Disabled ✅ / Enabled | 
reicast_vmu1_screen_display | 
disabled / enabled | 
| VMU Screen 1 Position | Upper Left ✅ / Upper Right / Lower Left / Lower Right | 
reicast_vmu1_screen_position | 
Upper Left / Upper Right / Lower Left / Lower Right | 
| VMU Screen 1 Size | 1x ✅ / 2x / 3x / 4x / 5x | 
reicast_vmu1_screen_size_mult | 
1x / 2x / 3x / 4x / 5x | 
| VMU Screen 1 Pixel On Color | Default ON ✅ / Default OFF / Black / Blue / Light Blue / Green / Cyan / Cyan Blue / Light Green / Cyan Green / Light Cyan / Red / Purple / Light Purple / Yellow / Grey / Light Purple (2) / Light Green (2) / Light Green (3) / Light Cyan (2) / Light Red (2) / Magenta / Light Purple (3) / Light Orange / Orange / Light Violet (4) / Light Yellow / Light Yellow (2) / White | 
reicast_vmu1_pixel_on_color | 
DEFAULT_ON 00 / DEFAULT_OFF 01 / BLACK 02 / BLUE 03 / LIGHT_BLUE 04 / GREEN 05 / CYAN 06 / CYAN_BLUE 07 / LIGHT_GREEN 08 / CYAN_GREEN 09 / LIGHT_CYAN 10 / RED 11 / PURPLE 12 / LIGHT_PURPLE 13 / YELLOW 14 / GREY 15 / LIGHT_PURPLE_2 16 / LIGHT_GREEN_2 17 / LIGHT_GREEN_3 18 / LIGHT_CYAN_2 19 / LIGHT_RED_2 20 / MAGENTA 21 / LIGHT_PURPLE_3 22 / LIGHT_ORANGE 23 / ORANGE 24 / LIGHT_PURPLE_4 25 / LIGHT_YELLOW 26 / LIGHT_YELLOW_2 27 / WHITE 28 | 
| VMU Screen 1 Pixel Off Color | Default OFF ✅ / Default ON / Black / Blue / Light Blue / Green / Cyan / Cyan Blue / Light Green / Cyan Green / Light Cyan / Red / Purple / Light Purple / Yellow / Grey / Light Purple (2) / Light Green (2) / Light Green (3) / Light Cyan (2) / Light Red (2) / Magenta / Light Purple (3) / Light Orange / Orange / Light Violet (4) / Light Yellow / Light Yellow (2) / White | 
reicast_vmu1_pixel_off_color | 
DEFAULT_OFF 00 / DEFAULT_ON 01 / BLACK 02 / BLUE 03 / LIGHT_BLUE 04 / GREEN 05 / CYAN 06 / CYAN_BLUE 07 / LIGHT_GREEN 08 / CYAN_GREEN 09 / LIGHT_CYAN 10 / RED 11 / PURPLE 12 / LIGHT_PURPLE 13 / YELLOW 14 / GREY 15 / LIGHT_PURPLE_2 16 / LIGHT_GREEN_2 17 / LIGHT_GREEN_3 18 / LIGHT_CYAN_2 19 / LIGHT_RED_2 20 / MAGENTA 21 / LIGHT_PURPLE_3 22 / LIGHT_ORANGE 23 / ORANGE 24 / LIGHT_PURPLE_4 25 / LIGHT_YELLOW 26 / LIGHT_YELLOW_2 27 / WHITE 28 | 
| VMU Screen 1 Opacity | 10% / 20% / 30% / 40% / 50% / 60% / 70% / 80% / 90% / 100% | 
reicast_vmu1_screen_opacity | 
10% / 20% / 30% / 40% / 50% / 60% / 70% / 80% / 90% / 100% | 
| VMU Screen 2 Display | Disabled ✅ / Enabled | 
reicast_vmu2_screen_display | 
disabled / enabled | 
| VMU Screen 2 Position | Upper Left ✅ / Upper Right / Lower Left / Lower Right | 
reicast_vmu2_screen_position | 
Upper Left / Upper Right / Lower Left / Lower Right | 
| VMU Screen 2 Size | 1x ✅ / 2x / 3x / 4x / 5x | 
reicast_vmu2_screen_size_mult | 
1x / 2x / 3x / 4x / 5x | 
| VMU Screen 2 Pixel On Color | Default ON ✅ / Default OFF / Black / Blue / Light Blue / Green / Cyan / Cyan Blue / Light Green / Cyan Green / Light Cyan / Red / Purple / Light Purple / Yellow / Grey / Light Purple (2) / Light Green (2) / Light Green (3) / Light Cyan (2) / Light Red (2) / Magenta / Light Purple (3) / Light Orange / Orange / Light Violet (4) / Light Yellow / Light Yellow (2) / White | 
reicast_vmu2_pixel_on_color | 
DEFAULT_ON 00 / DEFAULT_OFF 01 / BLACK 02 / BLUE 03 / LIGHT_BLUE 04 / GREEN 05 / CYAN 06 / CYAN_BLUE 07 / LIGHT_GREEN 08 / CYAN_GREEN 09 / LIGHT_CYAN 10 / RED 11 / PURPLE 12 / LIGHT_PURPLE 13 / YELLOW 14 / GREY 15 / LIGHT_PURPLE_2 16 / LIGHT_GREEN_2 17 / LIGHT_GREEN_3 18 / LIGHT_CYAN_2 19 / LIGHT_RED_2 20 / MAGENTA 21 / LIGHT_PURPLE_3 22 / LIGHT_ORANGE 23 / ORANGE 24 / LIGHT_PURPLE_4 25 / LIGHT_YELLOW 26 / LIGHT_YELLOW_2 27 / WHITE 28 | 
| VMU Screen 2 Pixel Off Color | Default OFF ✅ / Default ON / Black / Blue / Light Blue / Green / Cyan / Cyan Blue / Light Green / Cyan Green / Light Cyan / Red / Purple / Light Purple / Yellow / Grey / Light Purple (2) / Light Green (2) / Light Green (3) / Light Cyan (2) / Light Red (2) / Magenta / Light Purple (3) / Light Orange / Orange / Light Violet (4) / Light Yellow / Light Yellow (2) / White | 
reicast_vmu2_pixel_off_color | 
DEFAULT_OFF 00 / DEFAULT_ON 01 / BLACK 02 / BLUE 03 / LIGHT_BLUE 04 / GREEN 05 / CYAN 06 / CYAN_BLUE 07 / LIGHT_GREEN 08 / CYAN_GREEN 09 / LIGHT_CYAN 10 / RED 11 / PURPLE 12 / LIGHT_PURPLE 13 / YELLOW 14 / GREY 15 / LIGHT_PURPLE_2 16 / LIGHT_GREEN_2 17 / LIGHT_GREEN_3 18 / LIGHT_CYAN_2 19 / LIGHT_RED_2 20 / MAGENTA 21 / LIGHT_PURPLE_3 22 / LIGHT_ORANGE 23 / ORANGE 24 / LIGHT_PURPLE_4 25 / LIGHT_YELLOW 26 / LIGHT_YELLOW_2 27 / WHITE 28 | 
| VMU Screen 2 Opacity | 10% / 20% / 30% / 40% / 50% / 60% / 70% / 80% / 90% / 100% | 
reicast_vmu2_screen_opacity | 
10% / 20% / 30% / 40% / 50% / 60% / 70% / 80% / 90% / 100% | 
| VMU Screen 3 Display | Disabled ✅ / Enabled | 
reicast_vmu3_screen_display | 
disabled / enabled | 
| VMU Screen 3 Position | Upper Left ✅ / Upper Right / Lower Left / Lower Right | 
reicast_vmu3_screen_position | 
Upper Left / Upper Right / Lower Left / Lower Right | 
| VMU Screen 3 Size | 1x ✅ / 2x / 3x / 4x / 5x | 
reicast_vmu3_screen_size_mult | 
1x / 2x / 3x / 4x / 5x | 
| VMU Screen 3 Pixel On Color | Default ON ✅ / Default OFF / Black / Blue / Light Blue / Green / Cyan / Cyan Blue / Light Green / Cyan Green / Light Cyan / Red / Purple / Light Purple / Yellow / Grey / Light Purple (2) / Light Green (2) / Light Green (3) / Light Cyan (2) / Light Red (2) / Magenta / Light Purple (3) / Light Orange / Orange / Light Violet (4) / Light Yellow / Light Yellow (2) / White | 
reicast_vmu3_pixel_on_color | 
DEFAULT_ON 00 / DEFAULT_OFF 01 / BLACK 02 / BLUE 03 / LIGHT_BLUE 04 / GREEN 05 / CYAN 06 / CYAN_BLUE 07 / LIGHT_GREEN 08 / CYAN_GREEN 09 / LIGHT_CYAN 10 / RED 11 / PURPLE 12 / LIGHT_PURPLE 13 / YELLOW 14 / GREY 15 / LIGHT_PURPLE_2 16 / LIGHT_GREEN_2 17 / LIGHT_GREEN_3 18 / LIGHT_CYAN_2 19 / LIGHT_RED_2 20 / MAGENTA 21 / LIGHT_PURPLE_3 22 / LIGHT_ORANGE 23 / ORANGE 24 / LIGHT_PURPLE_4 25 / LIGHT_YELLOW 26 / LIGHT_YELLOW_2 27 / WHITE 28 | 
| VMU Screen 3 Pixel Off Color | Default OFF ✅ / Default ON / Black / Blue / Light Blue / Green / Cyan / Cyan Blue / Light Green / Cyan Green / Light Cyan / Red / Purple / Light Purple / Yellow / Grey / Light Purple (2) / Light Green (2) / Light Green (3) / Light Cyan (2) / Light Red (2) / Magenta / Light Purple (3) / Light Orange / Orange / Light Violet (4) / Light Yellow / Light Yellow (2) / White | 
reicast_vmu3_pixel_off_color | 
DEFAULT_OFF 00 / DEFAULT_ON 01 / BLACK 02 / BLUE 03 / LIGHT_BLUE 04 / GREEN 05 / CYAN 06 / CYAN_BLUE 07 / LIGHT_GREEN 08 / CYAN_GREEN 09 / LIGHT_CYAN 10 / RED 11 / PURPLE 12 / LIGHT_PURPLE 13 / YELLOW 14 / GREY 15 / LIGHT_PURPLE_2 16 / LIGHT_GREEN_2 17 / LIGHT_GREEN_3 18 / LIGHT_CYAN_2 19 / LIGHT_RED_2 20 / MAGENTA 21 / LIGHT_PURPLE_3 22 / LIGHT_ORANGE 23 / ORANGE 24 / LIGHT_PURPLE_4 25 / LIGHT_YELLOW 26 / LIGHT_YELLOW_2 27 / WHITE 28 | 
| VMU Screen 3 Opacity | 10% / 20% / 30% / 40% / 50% / 60% / 70% / 80% / 90% / 100% | 
reicast_vmu3_screen_opacity | 
10% / 20% / 30% / 40% / 50% / 60% / 70% / 80% / 90% / 100% | 
| VMU Screen 4 Display | Disabled ✅ / Enabled | 
reicast_vmu4_screen_display | 
disabled / enabled | 
| VMU Screen 4 Position | Upper Left ✅ / Upper Right / Lower Left / Lower Right | 
reicast_vmu4_screen_position | 
Upper Left / Upper Right / Lower Left / Lower Right | 
| VMU Screen 4 Size | 1x ✅ / 2x / 3x / 4x / 5x | 
reicast_vmu4_screen_size_mult | 
1x / 2x / 3x / 4x / 5x | 
| VMU Screen 4 Pixel On Color | Default ON ✅ / Default OFF / Black / Blue / Light Blue / Green / Cyan / Cyan Blue / Light Green / Cyan Green / Light Cyan / Red / Purple / Light Purple / Yellow / Grey / Light Purple (2) / Light Green (2) / Light Green (3) / Light Cyan (2) / Light Red (2) / Magenta / Light Purple (3) / Light Orange / Orange / Light Violet (4) / Light Yellow / Light Yellow (2) / White | 
reicast_vmu4_pixel_on_color | 
DEFAULT_ON 00 / DEFAULT_OFF 01 / BLACK 02 / BLUE 03 / LIGHT_BLUE 04 / GREEN 05 / CYAN 06 / CYAN_BLUE 07 / LIGHT_GREEN 08 / CYAN_GREEN 09 / LIGHT_CYAN 10 / RED 11 / PURPLE 12 / LIGHT_PURPLE 13 / YELLOW 14 / GREY 15 / LIGHT_PURPLE_2 16 / LIGHT_GREEN_2 17 / LIGHT_GREEN_3 18 / LIGHT_CYAN_2 19 / LIGHT_RED_2 20 / MAGENTA 21 / LIGHT_PURPLE_3 22 / LIGHT_ORANGE 23 / ORANGE 24 / LIGHT_PURPLE_4 25 / LIGHT_YELLOW 26 / LIGHT_YELLOW_2 27 / WHITE 28 | 
| VMU Screen 4 Pixel Off Color | Default OFF ✅ / Default ON / Black / Blue / Light Blue / Green / Cyan / Cyan Blue / Light Green / Cyan Green / Light Cyan / Red / Purple / Light Purple / Yellow / Grey / Light Purple (2) / Light Green (2) / Light Green (3) / Light Cyan (2) / Light Red (2) / Magenta / Light Purple (3) / Light Orange / Orange / Light Violet (4) / Light Yellow / Light Yellow (2) / White | 
reicast_vmu4_pixel_off_color | 
DEFAULT_OFF 00 / DEFAULT_ON 01 / BLACK 02 / BLUE 03 / LIGHT_BLUE 04 / GREEN 05 / CYAN 06 / CYAN_BLUE 07 / LIGHT_GREEN 08 / CYAN_GREEN 09 / LIGHT_CYAN 10 / RED 11 / PURPLE 12 / LIGHT_PURPLE 13 / YELLOW 14 / GREY 15 / LIGHT_PURPLE_2 16 / LIGHT_GREEN_2 17 / LIGHT_GREEN_3 18 / LIGHT_CYAN_2 19 / LIGHT_RED_2 20 / MAGENTA 21 / LIGHT_PURPLE_3 22 / LIGHT_ORANGE 23 / ORANGE 24 / LIGHT_PURPLE_4 25 / LIGHT_YELLOW 26 / LIGHT_YELLOW_2 27 / WHITE 28 | 
| VMU Screen 4 Opacity | 10% / 20% / 30% / 40% / 50% / 60% / 70% / 80% / 90% / 100% | 
reicast_vmu4_screen_opacity | 
10% / 20% / 30% / 40% / 50% / 60% / 70% / 80% / 90% / 100% | 
 External links