Systems with issues
Atomiswave – analog bypass
It has been reported that analog bypass of Atomiswave when in 31k mode does not work properly.
Toaplan 2
Some Toaplan 2 not lock properly, and display a distorted image on CRT monitors and likely no image on an LCD monitor. The root cause of this is that the irregular sync period is not a multiple of normal lines. It is normal for sync lengths around vsync to be irregular, but the sum of them are a multiple of normal lines. Because of this irregularity with Batsugun, first visible lines of the image are not ‘where they are supposed to be’, and the scaler has trouble displaying this correctly. It is not confirmed, but it is suspected that this is the same issue the OSSC has. Gamed tested not working with the Retro Scaler A1 are:
- Batsugun
- Dogyuun
- V-V/Grind Stormer
OSSC Reference: https://shmups.system11.org/viewtopic.php?f=6&t=65035
Taito Fighting Hawk
Does not work correctly with the A1, for (so far) unknown reasons.
Consoles
| System | Mods/Cable | Issues | Tester & Date |
| Sony PS1 (phat) | the monitor goes on/off all the time, SyncMaster 210T | 2020-01-02 Vendest |
StarTech Component to VGA Video Converter
Part number CPNT2VGAA. This unit is believed to output positive v-sync, which is not compatible with the A1. The A1 will only work with negative sync.
Systems with degradation
Consoles
| System | Mods/Cable | Issues | Tester & Date |
| Nintendo Famicom HVC101 | NESRGB mod | Slight bowing/shimmer upper right corner | 2019-12-21 InvZim& geekmiki |
| Sony Playstation 2, US (Fat, 39001) | via Extron Crosspoint 300 | 240p input (e.g. Playstation 1 games): perfect and crystal clear, 480i: horrid result. | 2020-03-23 Mattia |
Systems without issues
31K systems, analog bypass
Taito Type X – analog bypass
Sega Naomi – analog bypass
Tatsunoko vs Capcom – analog bypass, tested by wigsplitta
Non-arcade
| Manufacturer | System / version | Mods/Cable | Notes | Tester & Date |
| Apple | IIGS | Manilla Gear VGA adapter | CSYNC out | 2019-12-28 sammargh |
| Commodore | Amiga 1200 | 2021-10-09 sammargh | ||
| Microsoft | Xbox | via gscartsw | 2020-01-04 BroadwayJose | |
| NEC | PcEngine CoreGraphics | SD system 3 from TerraOnion | Source is a little noisy by nature | 2019-12-21 geekmiki |
| Nintendo | AV Famicom | NESRGB, csync and OEM cables | 2019-12-28 sammargh | |
| Nintendo | N64 | A few vertical lines, could be LCD related | 2020-01-02 Vendest | |
| Nintendo | Super Famicom NTSC Jap RGB-02 | via Extron Crosspoint 300 | 2020-03-23 Mattia | |
| Nintendo | Super Famicom NTSC Jap 1-Chip | via Extron Crosspoint 300 | 2020-03-23 Mattia | |
| Sega | Dreamcast | PAL hardware, stock RGB scart | all modes and tests in 240p suite | 2019-12-21 InvZim |
| Sega | Game Gear | McWill VGA mod – CSYNC out | 2020-01-02 sammargh | |
| Sega | Mega Drive V1 | RGB scart from retrogamingcables.co.uk | 2019-12-21 InvZim& geekmiki | |
| Sega | Saturn | “It’s perfect w/o any noise” | 2020-01-02 Vendest | |
| Sega | Saturn NTSC US Model 2 | via Extron Crosspoint 300 | 2020-03-23 Mattia | |
| Sharp | X68000 | 2021-10-09 sammargh | ||
| SNK | Neo-Geo AES NTSC Jap | via Extron Crosspoint 300 | 2020-03-23 Mattia | |
| SNK | SNK Neo-Geo CDZ | via Extron Crosspoint 300 | 2020-03-23 Mattia | |
| Sony | HB-F1XV MSX2+ | via Sync Slayer II | 2021-10-09 sammargh |
Arcade Games
Caveat for Vewlix owners – the LCD in one or more models of the Vewlix, particularly the Diamond variety, may not process the scaled output of the A1 properly or at all for some of the titles below. The majority of titles work without issues. |
| Manufacturer | Game | Notes | Tester & Date |
| Atari | Dig Dug | 2019-12-19 InvZim | |
| Atari | Pit Fighter | 2020-01-09 wigsplitta | |
| Atlus | Power Instinct | 2020-05-05 radiantsvgun | |
| Banpresto | Pretty Soldier Sailor Moon | 2019-12-21 rtw | |
| Banpresto | Super Spacefortress Macross | 2019-12-19 InvZim | |
| Bootleg | Bubble Bobble | 2019-12-19 InvZim | |
| Bootleg | Ghost’n Goblins | 2019-12-19 InvZim | |
| Brezzasoft | Crystal System | The Crystal Of Kings | 2020-01-14 rtw |
| Brezzasoft | Crystal System | All titles | 2020-03-26 Derick2k |
| Capcom | Commando Hardware | 1943 – syncs OK, has pixel noise, could be LCD | 2019-12-21 rtw |
| Capcom | Commando Hardware | Black Tiger | 2019-01-07 8bitforlife |
| Capcom | Commando Hardware | Commando | 2019-12-19 InvZim |
| Capcom | CPS-1 | Three Wonders | 2019-12-21 rtw |
| Capcom | CPS-1.5 | The Punisher | 2019-12-24 Wigsplitta |
| Capcom | CPS-2 | Progear | 2019-12-19 InvZim |
| Capcom | CPS2 ‘All-in-One’ Black | HSF2: AE | 2020-01-03 wigsplitta |
| Capcom | CPS-3 | SF3 Third Strike | 2020-01-03 wigsplitta |
| Capcom | Side Arms | 2019-12-19 InvZim | |
| Capcom | Street Fighter The Movie | 2020-03-17 Derick2k | |
| Cave | 68000 Hardware | Dangun Feveron | 2019-12-21 rtw |
| Cave | 68000 Hardware | Donpachi | 2020-01-09 wigsplitta |
| Cave | CV-1000 | Espgaluda II, ok on CRT and LCD | 2019-12-21 InvZim |
| Cave | CV-1000 | Pink Sweets – very slight bowing in top right corner when screen is bright on LCD, not present on CRT. GIF showing issue on LCD. | 2019-12-21 rtw |
| Cave | Ketsui | 2019-12-20 rtw | |
| Data East | Deco32 | Night Slashers | 2019-12-21 rtw |
| Data East | Magical Drop | 2020-05-05 radiantsvgun | |
| Data East | Nitro Ball | 2019-20-21 rtw | |
| Gaelco | World Rally Championship | Atari License | 2020-01-06 wigsplitta |
| IGS | PolyGame Master (PGM) | The Gladiator | 2020-04-28 radiantsvgun |
| IGS | PolyGame Master (PGM) | Knights Of Valor | 2020-01-14 rtw |
| IGS | PolyGame Master 2 (PGM2) | DoDonPachi Dai Ou Jou Tamashii | 2020-05-05 radiantsvgun |
| IGS | PolyGame Master 2 (PGM2) | Knights of Valour 3 / Sangoku Senki 3 | 2020-05-05 radiantsvgun |
| IGS | PolyGame Master 2 (PGM2) | Oriental Legend 2 | 2020-05-05 radiantsvgun |
| Irem | Kung-Fu Master | game by itself has a little noisy video | 2019-12-19 InvZim |
| Irem | M72 | Dragon Breed | 2019-12-20 rtw |
| Irem | M72 | R-Type | 2019-12-20 rtw |
| Irem | M72 | X-multiply | 2020-01-07 Joe |
| Irem | M77 | Kickle Cubicle | 2020-01-09 rtw |
| Irem | M84 | R-Type 2 | 2019-12-19 InvZim |
| Irem | M92 | In The Hunt | 2020-05-05 radiantsvgun |
| Irem | Moon Patrol | game by itself has a little noisy video | 2019-12-19 InvZim |
| Jaleco | Mega System 32 | P-47 Aces | 2020-02-15 rtw |
| Kaneko | B.Rap Boys | 2020-04-28 radiantsvgun | |
| Kaneko | DJ Boy | 2020-05-05 radiantsvgun | |
| Kaneko | Gals Panic | 2019-12-21 rtw | |
| Kaneko | Super Nova System | Cyvern | 2019-12-21 rtw |
| Konami | Gradius II | 2019-12-19 InvZim | |
| Konami | GX system | Winning Spike | 2019-12-19 InvZim |
| Konami | Nemesis (Gradius) | 2019-12-19 InvZim | |
| Konami | Life Force / Salamander | 2019-12-19 InvZim | |
| Konami | Martial Champion | 2020-04-28 radiantsvgun | |
| Konami | Metamorphic Force | 2020-04-28 radiantsvgun | |
| Konami | Mystic Warriors | 2020-04-28 radiantsvgun | |
| Konami | TMNT based HW | Aliens | 2020-01-06 Joe |
| Konami | TMNT based HW | TMNT | 2020-01-06 wigsplitta |
| Konami | TMNT based HW | Sunset Riders | 2020-01-06 wigsplitta |
| Konami | X-Men based HW | Crime Fighters 2 | 2020-01-06 wigsplitta |
| Konami | Xexex | 2020-01-07 rtw | |
| Metro | Last Fortress | 2019-12-21 rtw | |
| Midway | Midway Y Unit | Mortal Kombat | 2020-01-03 wigsplitta |
| Midway | Midway T Unit | Mortal Kombat 2 | 2019-12-19 InvZim |
| Midway | Midway Wolf Unit | Ultimate Mortal Kombat 3 | 2019-12-19 InvZim |
| Namco | NA-1 | Fighter & Attacker | 2020-01-07 8bitforlife |
| Namco | NA-1 | Emeralda | 2019-12-21 rtw |
| Namco | System 1 | Dragon Spirit | 2020-01-07 rtw |
| Namco | System 2 | Valkyrie | 2019-12-21 rtw |
| Namco | System 2 | Phelios, Dragon Saber, Burning Force | 2020-04-28 radiantsvgun |
| Namco | System 10 | Mr. Driller G | 2019-12-19 InvZim |
| Namco | System 11 | Tekken 2 | 2020-01-07 8bitforlife |
| Namco | System 11 | Dancing Eyes | 2020-05-05 radiantsvgun |
| Namco | system 12 | Tekken 3 – interlace and non-interlace video | 2019-12-19 InvZim |
| Namco | Valkyrie | 2019-12-21 rtw | |
| NMK | GunNail | 2019-12-21 rtw | |
| Nichibutsu | Terra Force | 2019-12-21 rtw | |
| Nintendo | Nintendo Super System | Super Mario World | 2019-01-09 wigsplitta |
| Psikyo | Strikers 1999 (Strikers 1945 III) | 2019-12-19 InvZim | |
| Sega | C-2 | Puyo Puyo | 2019-12-20 rtw |
| Sega | C-2 | Thunder Force AC | 2020-01-06 wigsplitta |
| Sega | ST-V | Winter Heat, interlace and non-interlace video). | 2019-12-19 InvZim |
| Sega | System 2 | Choplifter | 2020-04-28 radiantsvgun |
| Sega | System 16 | Shinobi | 2019-12-21 rtw |
| Sega | System 18 | Michael Jackson’s Moonwalker | 2020-01-07 Joe |
| Seta | Aleck64 | Tower & Shaft | 2021-01-25 rtw |
| Seta, Sammy, Visco | SSV system | Vasara | 2019-12-21 rtw |
| Seibu | Raiden DX | 2019-12-21 rtw | |
| Seibu | SPI | Raiden Fighters | 2019-12-20 rtw |
| SNK | MV-1A (NeoGeo MVS) | Puzzle Bobble | 2019-12-19 InvZim |
| SNK | Hyper NeoGeo 64 | Buriki One | 2020-04-04 Rave Pants |
| SNK | Hyper NeoGeo 64 | Fatal Fury: Wild Ambition | 2020-04-04 Rave Pants |
| SNK | Hyper NeoGeo 64 | Samurai Spirits 2 | 2020-04-04 Rave Pants |
| SNK Playmore | NEO-MVH MVO | SVC Chaos: SNK vs Capcom | 2020-01-16 wigsplitta |
| Taito | Arkanoid – Revenge of DOH | 2019-12-19 InvZim | |
| Taito | Taito F2 system | Metal Black | 2019-12-21 rtw |
| Taito | Taito F2 system | Pu.Li.Ru.La | 2020-03-26 Derick2k |
| Taito | Taito F2 system | The Final Blow | 2020-05-05 radiantsvgun |
| Taito | Taito F3 system | Bubble Memories, Darksoft F3 multi | 2019-12-20 rtw |
| Taito | Taito G-net system | Super Puzzle Bobble | 2019-12-19 InvZim |
| Taito | Truxton / Tatsujin | 2019-12-19 InvZim | |
| Taito | Volfied | missing some lines on LCD, ok on CRT | 2019-12-21 rtw |
| Taito | Wardner | 2020-02-28 Thchardcore | |
| Technos | Double Dragon II | 2020-04-29 radiantsvgun | |
| Technos | Renegade | 2020-04-28 radiantsvgun | |
| Technos | Wrestlefest | 2020-01-06 wigsplitta | |
| Technosoft | Hyper Duel | 2020-02-28 Thchardcore | |
| Tecmo | Ninja Gaiden | 2020-01-07 8bitforlife | |
| Toaplan | Snow Bros. | 2020-01-03 wigsplitta | |
| Toaplan | Tiger Heli | 2020-04-28 radiantsvgun | |
| Toaplan | Version 1 HW | Outzone | 2019-12-21 rtw |
| Toaplan | Version 2 HW | Armed Police Batrider | 2020-04-28 radiantsvgun |
| Toaplan | Version 2 HW | Truxton II / Tatsujin Oh | 2020-04-28 radiantsvgun |
| Tehkan | Bomb Jack | 2019-12-19 InvZim |
Last Updated on 2022-09-11 by admin