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Horizon (Irem)

Game Information
manufacturer Irem
year 1985
genre N/A
downloads 0
Screenshots
horizon title
horizon title
horizon title
horizon title
Download Details
split set horizon.zip 82.68k
merged set horizon.7z 71.16k
standalone set horizon.7z 71.16k
Game Details
Arcade Video game published 40 years ago:

Horizon (c) 1985 Irem.

A horizontally scrolling shooter, Horizon is the sequel to Moon Patrol. Both were developed by Irem corporation; only Moon Patrol was licensed to Williams.

Players take control of hover vehicle armed with a turret and a cannon, rolling over the terrain and alternating their position and perspective on three different lanes to destroy enemies and dodge attacks while avoiding obstacles and picking up fuel and other items.

- TECHNICAL -

Irem M-62 system hardware

Main CPU: Zilog Z80 (@ 4 Mhz)
Sound CPU: Motorola M6803 (@ 894.886 Khz)
Sound Chips: (2x) General Instrument AY8910 (@ 894.886 Khz), (2x) MSM5205 (@ 384 Khz)

Screen orientation: square screen
Video resolution: 256 x 256 pixels
Screen refresh: 55.00 Hz
Palette colors: 512

Players: up to 2 (alternating turns)
Control: 4-way joystick
Buttons: 1
[A] = FIRE CANNON AND SHOOT FROM STATIC TURRET

- TRIVIA -

Irem's Horizon was released in 1985.

The game knows 2 buttons in service mode, but only 1 is used in the game. The 2nd button's purpose is unknown; it may have been a separate button for rockets shot out of the turret. Instead, 1 button functions as in 'technical section' above.

The music has more drums when the hovercraft is in the lane close to the screen, where the music with fewer drums is played on the far lane.

- TIPS AND TRICKS -

* Caution beep indicates a foe's hovercraft is about to appear.
* Irem's Horizon is an unfair game: you'll have to repeat the whole section after you get shot by or collide with any enemy (along with static one). If you were close to checkpoint 3, you have to drive all the way from checkpoint 2.
* The turret shoots close-ranged rockets out: if an enemy is too far from a rocket, try to drive slightly closer and shoot the foe out.
* Take every fuel pick-up: miss one and you'll lose a life.
* Caterpillars are flying when your hovercraft is on the same lane as them. Ensure you're divided with a safe distance and shoot them out.
* There are 3 concrete blocks in the middle lane in section 2. Take them out to drive further; there's also per 1 in top and bottom lane, but they're indestructible and cause a life loss (when hit).
* There are indestructible ruins and Greek pillars in section 4: don't hit them, just like the blocks in section 2. But there are other enemies flying circularly.
* Watch out for abductors in operations "B", "C" and "D". Don't hit their beam.

- SERIES -

1. Moon Patrol (1982)
2. Horizon (1985)

- CONTRIBUTE -

Edit this entry: https://www.arcade-history.com/?&page=detail&id=1142&o=2
Driver Details
source irem/m62.cpp
status imperfect
emulation good
savestate supported
type sound
status imperfect
Screen Details
display screen
type raster
orientation horizontal
width 256px
height 256px
refresh 56.34mhz
Input Details
player 1
type joy
buttons 2
directions 8
player 2
type joy
buttons 2
directions 8
Chipset Details
name Zilog Z80
clock 3.81mhz
name Motorola MC6803
clock 3.41mhz
name Speaker
clock N/A
name AY-3-8910A PSG
clock 873.91khz
name AY-3-8910A PSG
clock 873.91khz
name OKI MSM5205 ADPCM
clock 375.00khz
name OKI MSM5205 ADPCM
clock 375.00khz
name Netlist Sound Device
clock N/A
ROM Details
name size crc
hrza-4e 16.00k 98b96ba2
hrza-4d 16.00k 06b06ac7
hrza-4b 16.00k 39c0bd02
hrza-3f 16.00k 7412c99f
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hrzd-4c 8.00k 1cf73b53
hrzd-4a 8.00k eace8d53
hrzb-4k.00 16.00k 11d2f3a1
hrzb-4f.01 16.00k 356902ea
hrzb-3n.10 16.00k 87078a02
hrzb-4n.11 16.00k 5019cb1f
hrzb-4c.20 16.00k 90b385e7
hrzb-4e.21 16.00k d05d77a2
hrzb-5p 32.00b 208b49e9
hrzb-1m.r 256.00b 0871690a
hrzb-1n.g 256.00b f247d0a9
hrzb-1l.b 256.00b 9ad0a0c8
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hrzd-1e 256.00b 1fa60379
hrzb-6f 256.00b 82c20d12