Demon (1982) - Arcade Video game by Rock-Ola Mfg. Corp.

44 Years old Arcade Video game Rock-Ola Mfg. Corp. [Chicago, IL, USA]

Demon © 1982 Rock-ola.

An old overhead-view shoot'em up game.

TECHNICAL / MACHINE PICT.

Main CPU : CCPU (@ 5 Mhz)
Sound CPU : Zilog Z80 (@ 3.579545 Mhz)
Sound Chips : (3x) General Instrument AY8910 (@ 3.579545 Mhz)

Screen orientation : Horizontal
Video resolution : 224 x 256 pixels
Screen refresh : 38.00 Hz
Palette colors : 32768

Players : 2
Control : 2-way joystick
Buttons : 3

Machine Picture
(members only)

TRIVIA

Demon was created on Cinematronics' vector hardware by Rock-Ola. The flickering is normal :)

SCORING

Collecting a crystal	100 points.
Dropping a crystal in the shuttle	100, 200, 300 etc. up to 1,000 points then back to 100 points.
Each second survived	10 points.
Destroying large alien with tail	1,500 points.
Off centre hit on large alien	up to 1,300 points.
Destroying a mutated crystal	400 points.

TIPS AND TRICKS

* At the start of the game, concentrate on loading as many crystals as you can. Don't worry about the enemy ships yet as they are easy to avoid.

* The mutated aliens with the tails which appear later in the game are worth the most points. You get 1,500 for a direct hit destroying them, but also points for each near non-fatal hit. Get a few hits off-target if you can, as they can be worth 1,300 points each!

* Keep an eye on your shot power remaining and be ready to collect a crystal if necessary to recharge.

* If the shuttle appears on screen level with the bottom block, keep collecting crystals and don't drop any off until the shuttle is clear of the block. You can often lose a life if you are carrying a crystal and can't get to the shuttle before it explodes.

STAFF

👥

Designed and programmed by: Joe Ulowetz

SOURCES

🔗

ROM dump (MAME).
Game's picture.
Arcade Retro Lounge; http://tips.retrogames.com/