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A.L.C.O.N. is a forward-scrolling spaceship shooting game taking place over the planet Orac. Alien enemies have occupied the planet in the year 2059. The Alien League Of Cosmic Nations has determined that you are the pilot to take the Slap Fighter (Europe) / SW475 Starfighter (US) and defeat the aliens.

The main feature of the game is its pickup system. You pick up stars and then you choose which powerup you want, pick up one star and you can choose speed, two stars to choose shot (which is the default type of weapon), three stars to choose side shot, four for wing upgrade (which triggers the fancy ship enlargement animation, also gives you a couple seconds of invulnerability), five for bomb shot, six for laser shot, seven for homing missiles and eight for a shield upgrade.

The shot is the default quick-but-limited weapon, having a rather short range, bombs are very powerful but short ranged and with a big gap between shots, making them hard to use. Laser is fast and full screen ranged, probably the most balanced weapon in the game, and homing missiles speak for themselves, as they chase the enemies after moving and curving for a while. The game doesn't have "stages": you play through a long, continuous level with bosses in between, like Xevious or Terra Cresta; once you complete it, you start again a new loop with added difficulty. Also, the game has no continues.


A.L.C.O.N. Commodore 64 Breaking the red window to progress (NTSC)
A.L.C.O.N. Commodore 64 Using the Side weapon (beams on side of wings) (PAL)
A.L.C.O.N. Commodore 64 Enemies travel along the grid in this part (NTSC)
A.L.C.O.N. Commodore 64 Slap Fight title screen (European version) (PAL)

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Alternate Titles

  • "Slap Fight" -- International title
  • "Alcon" -- Alternate spelling (title screen)

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Critic Reviews

Computer and Video Games (CVG) Aug, 1987 10 out of 10 100
Computer and Video Games (CVG) Jul, 1990 81 out of 100 81
Happy Computer 1986 80 out of 100 80
Zzap! Aug, 1987 80 out of 100 80
ASM (Aktueller Software Markt) Sep, 1987 9.4 out of 12 78
Commodore Force Aug, 1993 76 out of 100 76
64'er Sep, 1987 11 out of 15 73


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Carl-Henrik (661) added A.L.C.O.N. (Commodore 64) on Jun 28, 2004
Other platforms contributed by Kabushi (210243) and Martin Smith (66870)