[arcade] Shmupmame 5.3 6/03/2026

Shmupmame 5.3 6/03/2025

• Added bio_endio's code for accurate cv1k slowdown emulation. 
  • Huge thanks to bio_endio for implementing correct cache emulation which results in as far as we know pcb matching slowdown.

Shmupmame 5.11

• hotfix: Corrected issue where Batsugun special and Daifukkatsu Loop 2 modes could be incorrectly initialized on normal sets.

Shmupmame 5.1 - 2026 nimitz - minor fixes release

Changes from 5.0:

• sh3 memory timings back to coffeePope's build values since only the first ~30 seconds of Deathsmiles behave oddly. 
• Seems to be a GFX upload issue that only shows up in the first few seconds of play on deathsmiles.
• Stopped injecting Game Tengoku credit switch to prevent weirdness (too many coins)
• DDP loop 2 start now starts the player at max power as you would if playing normally.
• DDP loop 2 start now work for both p1 and p2 start.

Changelog for version 5.0

• Shmupmame 5.0 (sh3, psx, stv, cave 68000 and more) by nimitz 2026

Loop 2 start for the following games:

• Batsugun special (Starts at loop 2 with max power, but “level 1”)
• Donpachi (jp) (Starts at loop 2 with max power)
• Dodonpachi (Starts at loop 2 with minimum power, max power not needed at all)
• Dai-ou-Jou Black Label (also includes WL) (Starts at loop 2 with max power for both shot and laser)
• Ketsui Ura Loop (Starts at loop 2 with max power)
• Ketsui Omote Loop (Starts at loop 2 with standard power)
• DaiFukkatsu 1.5 Omote Loop (Starts at loop 2 with max power)
• List of included drivers (shmups only, with some exceptions):

Shmupmame 5 “exlusives” (current alternatives are worse, due to inaccuracies, runahead/preemtive limitations or only available in vanilla mame)

• CV1k via single buffering (Mushihimesama, Futari, Galuda 2, Dfk, Ibara, Deathsmiles, Pink Sweets, etc..)
• Sega STV via single buffering (Guardian Force, Radiant Silvergun, Cotton 2/boomerang, Soukyugurentai, Shienryu)
• Sony ZN via single buffering (Brave blade, G-Darius, Raystorm, Aero Fighters special)
• Taito G-net via single buffering (Raycrisis, Psyvariar, Shikigami no shiro, Night Raid, Xii Stag)
• Gradius IV via single buffering (voodoo1 video driver, no artefict)

New de-lag methods in shmupmame 5

• Cave 68000 via input injection (Dodonpachi, Esprade, Dangun feveron, Mazinger Z, Air gallet, Guwange (buffer delete)) (Donpachi and Hotdog Storm already responsive)
• Jaleco Mega System 32 via input injection (P47 Aces, Game Tengoku, Gratia)
• Gradius II via sprite buffer delete (the method is new, might have been de-lagged in older builds though)

De-lagged drivers ported from shmupmame 4.2 (removed hacks with visual side effects)

• Psikyo 1st gen both injection and sprite buffer delete (Strikers 1945, Gunbird, Sengoku Ace, Tengai) (Frame advance shows 3 frames, but measured at 2 frames)
• Namco System 1 both injection and sprite buffer delete (Galaga ’88, blast off, dangerous seed, dragon spirit (injection only))
• Some NMK 16 shmups via sprite buffer delete (Thunder Dragon 2, Rapid Hero, Macross 2, Strahl, US AAF Mustang, Black Heart, Acrobat mission, task force harrier)
• Psikyo 2nd gen via sprite buffer delete (Strikers 1945 2/3, Gunbird 2, Dragon Blaze, Space Bomber)
• Mars matrix via sprite buffer delete (5 frames -> 3 frames, autosword and autofire for player 1)
• Cps2 via sprite buffer delete (Progear, Gigawing, 1944, 19XX) *not Great Mahou/dimahou and 19XX due to visual artifacts
• Cps1 via sprite buffer delete (3wonders, 1941, area88, carrier air wing, lost/forgotten worlds) *varth/3wonders/mercs are untouched since it results in visual artifacts
• Jaleco megasys1 via sprite buffer delete (Chimera Beast, EDF, Cybattler, P47, Saint Dragon) Plus alpha untouched but responsive
• Boogie wings via sprite buffer delete (unique hardware/driver)

Included vanilla responsive drivers (2 frames lag or less)

• PGM (Ketsui, Espgaluda, Ddp Dai-ou-jou, Ddp2)
• Konami systems (Parodius series, Gradius I/III, Twinbee series, Salamander series, Thunder cross 1/2, Xexex, Trigon)
• Toaplan systems (Batsugun, Tatsujin/Truxton 1/2, Fling Shark, Fire Shark, Twin Cobra, Outzone, Dogyuun, Vimana, Hellfire, Zero wing)
• Taito F3 (Rayforce, Darius Gaiden, Grid Seeker, Gekirindan, Twin Cobra 2, Space Invaders 95)
• Taito F2 (Metal BLack, Gun & Frontier, Super Space Invaders, Megablast)
• Seibu Systems (Raiden 1, Raiden 2/DX, Raiden Fighters 1/2/Jet, Viper Phase one)
• Sega Sysemt 16A/B (Fantasy zone 1/2, cotton, aurail, SDI, sonic boom)
• Neogeo shmups (some) (twinkle star, tomaday, andro dunos, viewpoint, sonic wings 2/3, pulstar, last resort, zed blade, shock troopers 1/2), the rest need testing
• Omega Fighters & Cyvern (might need injection)
• Irem System (R-type 1/2/Leo, Mystic Riders, Image Fight, X-multiply, Air Duel, Gallop, Dragon Breed)
• Darius 1 & 2
• 1942 & 1943 & 1943 kai
• Some classics (mad planets, robotron, juno first, sky kid, xevious, zaxxon, centipede, millipede, space invaders, galaxian, galaga, gaplus, space invaders, gyruss)
• Sammy Seta Visco hardware (Change Air blade, storm blade, vasara 1/2, ultra x weapons, twin eagle 2)
• Nostradamus

Drivers/games unfortunately not included:

• Most of Raizing’s 68000 games, 3-4 frames delay, recommended to play with a runahead/preemptive emulator (Mahou is included as it is responsive)
• Dragon Saber, very laggy and buffer delete is noticable because of panning
• Daioh (somehow very laggy even though other games on the system are fine, investigated a bit and found no easy fix)
• Dooyong, Afega, Comad and other very low budget shmups, due to lack of interest
• Early 80s space invaders copycats, there are hundreds of those, tried to inlcude some of the best ones