Manufacturers

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Alcon (US)

  1. Game infos
  2. Parent and Clones
  3. Sound
  4. Driver
  5. Inputs
  6. Controls
  7. Display
  8. Dipswitchs
  9. Roms list
  10. Chips list
  11. Categories
  12. MAMEinfo
  13. History
  14. High scores
Download alcon.zip (347 KB)
Snapshot

Game infos

Description Alcon (US)
Name alcon
Manufacturer Toaplan / Taito America Corp.
Year 1986
Runnable yes
System arcade /
Number of players 2P alt
Added to MAME .035rc1
Romset size 347 KB
Romset file 17 files
Romset zip 143 B
Language English
Evaluation 50 to 60 (Not Good Enough)
Genre Shooter

Parent and clones

Parent This game is the parent

Sound infos

Sound_channels 1

Driver infos

Driver status good
Driver emulation good
Driver color good
Driver sound good
Driver graphic good
Driver cocktail preliminary
Driver protection
Driver savestate yes

Inputs infos

Input service no
Input tilt no
Input players 2
Input buttons
Input coins 2

Controls infos

type ways minimum maximum sensitivity keydelta reverse
joy 8 no

Display infos

type rotate flipx width height refresh pixclock htotal hbend hbstart vtotal vbend vbstart
raster 270 no 280 240 60

Dipswitchs

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade 19_82s129.12n 256 5cbf9fbf abfa58fa4e44ebc56f2e0fac9bcc36164c845fa3 proms 200 good no
arcade 20_82s129.12m 256 a56d57e5 bfbd0db52b23fe1b4994e05103be3d412c1c013e proms 100 good no
arcade 21_82s129.12q 256 a0efaf99 5df01663480acad1f89abab8662d437617a66d1c proms 0 good no
arcade a77_00-1.8p 32768 2ba82d60 b37659aa18a3f96a3cc7fa93db2439f36487b8c8 maincpu 0 good no
arcade a77_01-1.8n 32768 18bb2f12 7c16d4bbb8b5e22f227aff170e5e6326c5968968 maincpu 10000 good no
arcade a77_02.12d 8192 87f4705a a90d5644ce268f3321047a4f96df96ac294d2f1b audiocpu 0 good no
arcade a77_03-1.6g 8192 404152c0 d05bc9baa1f336475fffc2f19f1018e9f0547f10 gfx1 2000 good no
arcade a77_04-1.6f 8192 31003483 7014ceb6313ac5a3d2dcb735643dfd8bfabaa185 gfx1 0 good no
arcade a77_05.6p 32768 974e2ea9 3840550fc3a833828dad8f3e300d2ea583d69ce7 gfx2 18000 good no
arcade a77_06.6n 32768 5faeeea3 696fba24bcf1f3a7e914a4403854da5eededaf7f gfx2 10000 good no
arcade a77_07.6m 32768 e92d9d60 2554617e0e6615ca8c85a49299a4a0e762478339 gfx2 8000 good no
arcade a77_08.6k 32768 b6358305 c7bb4236a75ec6b88f011bc30f8fb9a718e2ca3e gfx2 0 good no
arcade a77_09.7h 32768 587113ae 90abe961494a1af7c87693a419fbabf7a58a5dee gfx3 18000 good no
arcade a77_10.8h 32768 422d946b c251ef9597a11ec8de39be4fcbddaba84e649ef2 gfx3 10000 good no
arcade a77_11.7j 32768 b1b7b925 199b0b52bbeb384211171eca5c50a1c0ebf6826f gfx3 8000 good no
arcade a77_12.8j 32768 8545d397 9a1fd5bfd8fb830b8e46643c08eef32ba968fc23 gfx3 0 good no
arcade a77_13.6a 2048 a70c81d9 f155ffd25a946b0459216a8f80ded16e6e2f9258 bmcu:mcu 0 good no

Chips list

name tag type clock
AY-3-8910A ay2 audio 1500000
MC68705P5 bmcu:mcu cpu 3000000
Speaker mono audio
Z80 audiocpu cpu 3000000

Categories

MAMEinfo

0.138u3 [Marco Cassili]

0.33b2 [Keith Wilkins]


Artwork available


WIP:

- 0.182: Slap Fight M68705 functionality can be safely folded into base class so do so [Vas Crabb]. Replaced 'M68705 (NEW)' CPU3 with 'MC68705P5'.

- 0.181: Replaced M68705 CPU3 with 'M68705 (NEW)'.

- 0.154: Osso fixed Alcon and Slap Fight save state problem.

- 6th August 2011: Guru - A couple of boards arrived for decapping. Slapfight A76 version and Return of the Invaders. Both have a 68705P5 MCU. Thanks to Tingoes for the donations.

- 6th June 2011: Guru - Some items arrived: Slap Fight very rare alternative version with A76 ROMs and A76 68705P5 MCU. Thanks to tingoes.

- 6th September 2010: Mr. Do - Alcon is done, thanks to Kiltron for cleaning, and to Zorg for sending in the bezel to be scanned.

- 0.138u3: Phil Bennett and Dr. Decapitator hooked up Slap Fight/Alcon 68705 MCU. Brian Troha and Guru corrected rom names for the Slap Fight sets, added PCB locations to any set where possible, added DIP locations and moved PCB information down to matching rom sets. Changed clone 'Alcon' to parent 'Alcon (US)', (set 1) to clone 'Slap Fight (Japan set 1)', (set 2) to 'Slap Fight (Japan set 2)', (Japan bootleg) to 'Slap Fight (bootleg set 1)', (English bootleg) to 'Slap Fight (bootleg set 2)' and (bootleg) to 'Slap Fight (bootleg set 3)'. Renamed (slapbtjp) to (slapfighb1), (slapbtuk) to (slapfighb2) and (slapfgtr) to (slapfighb3).

- 25th June 2010: Guru - The 68705P5 MCU (A77_1) for Slap Fight has now been successfully processed (decap, de-protect & read).

- 0.133u1: Renamed (slapfiga) to (slapfigha).

- 0.126u4: Guru added README for Slap Fight and Alcon.

- 0.123u1: Corrado Tomaselli corrected the clocks in Slap Fight. Changed Z80 CPU2 clock speed to 3MHz.

- 0.104u9: David Haywood added clone Slap Fight (set 2). Changed parent description to 'Slap Fight (set 1)'.

- 0.104u8: David Haywood added clone Slap Fight (bootleg).

- 24th March 2006: f205v dumped Slap Fight (bootleg).

- 12th September 2005: Guru - Slap Fight with a 68705 MCU arrived. Thanks to Tingoes.

- 16th April 2005: Guru - Alcon (with 68705P5, unfortunatley it's protected!) arrived. Thanks to the good boys at the Italian MAME Forum.

- 14th March 2005: Corrado Tomaselli dumped Slap Fight (set 2).

- 0.35: Changed description of clone (Japanese bootleg) to 'Slap Fight (Japan bootleg)'.

- 0.35RC1: Marco Cassili added clone Alcon. Not working due to protection.

- 0.34b4: Sebastien Chevalier improved music tempo in Slap Fight.

- 0.34b1: Christoff Feldtmann improved gfx in Slap Fight.

- 0.33b7: Keith Wilkins added accurate colors to Slap Fight. Known issues: Scrolling is jerky. Music tempo is too slow. Renamed (slapboot) to (slapbtjp) and (slpboota) to (slapbtuk).

- 0.33b2: Keith Wilkins added 'Slap Fight' (Taito 1986) and clones (Japanese Bootleg) and (English Bootleg). Due to protection, the original version doesn't work. Scrolling is jerky. Music tempo is too slow. Use one of the bootlegs instead. The three games are identical, only the 1st CPU EPROM is different which shows up in the boot message, one if Japanese domestic and the other is English. The proms which MAY be the original slapfight ones currently give a hardware error and fail to boot.


LEVELS: 1 (endless)


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* Sparcade


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History


Arcade Video game published 33 years ago:

Alcon (c) 1986 Taito America Corp.

Vertical scrolling shoot-em-up. Shoot ground targets and collect stars which can be exchanged for various power-ups. Fly over hi-tech landscape. Features end of level bosses, good sound and graphics.

- TECHNICAL -

Board Number : M6100186A
Prom Stickers : A77

Main CPU : (2x) Zilog Z80 (@ 6 Mhz)
Sound Chips : (2x) General Instrument AY8910 (@ 1.5 Mhz)

Players : 2
Control : 8-way joystick
Buttons : 2

- TRIVIA -

Alcon was released in December 1986 in the USA. It is known outside US as "Slap Fight".

'ALCON' stands for 'Allied League of Cosmic Nations'.

Gary Hatt holds the record for this game with 838,050 points on April 25, 1987.

- TIPS AND TRICKS -

* Weapon descriptions :
Speed - This will increase your flying speed.
Shot - Normal forward fire.
Side - Right and left fire.
Wing - Double, triple and quadruple fire power.
Bomb - Wide range fire
Laser - Long range fire.
H. Mis - Homing missiles.
Shield - Indestructible against three hits.

* Super Power-Up : Insert your coin(s) and select one player mode. When you begin the game, do not press the fire button and do not kill anything. Try lasting as long as possible avoiding the enemies' bullets. Your ship will eventually be destroyed and when you resume, you will have all power-ups and weapons. The longer you lasted before being destroyed, the further in the game you'll resume.

- STAFF -

Sound composer : Masahiro Yuge

- PORTS -

* COMPUTERS:
[US] Commodore C64 (1987) "Slap Fight" by Imagine Studios
[US] Atari ST (1987) "Alcon"
[EU] Atari ST (1988) "Slap Fight" by Imagine Studios

- CONTRIBUTE -

Edit this entry: https://www.arcade-history.com/?&page=detail&id=55&o=2

High scores

MAMESCORE records : 02/04/2017 13:01

bald_bull_____________________555.330
plamat________________________366.680
foxmulder_____________________324.250
hulkiii________________________15.440