Demon - MAME machine

Arcade Video game published 42 years ago:

Demon © 1982 Rock-ola.

An old overhead-view shoot'em up game.

TECHNICAL
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

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

CONTRIBUTE
Edit this entry: https://www.arcade-history.com/?&page=detail&id=618&o=2