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Monster Zero

  1. Game infos
  2. Sound
  3. Driver
  4. Inputs
  5. Controls
  6. Display
  7. Dipswitchs
  8. Roms list
  9. Chips list
  10. Categories
  11. MAMEinfo
  12. History
Download monsterz.zip (69 KB)
Snapshot

Game infos

Description Monster Zero
Name monsterz
Manufacturer Nihon Game
Year 1982
Runnable yes
System arcade /
Number of players ???
Added to MAME .111u3
Romset size 69 KB
Romset file 18 files
Romset zip 33 B
Language English
Genre Shooter

Sound infos

Sound_channels 1

Driver infos

Driver status preliminary
Driver emulation preliminary
Driver color good
Driver sound imperfect
Driver graphic good
Driver cocktail
Driver protection preliminary
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 0 yes 768 224 60.606061 18432000 1152 0 768 264 16 240

Dipswitchs

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade a-1e.k1 4096 b88ba44e 85c141fb411d541b1e20412f5fefd18395f635ae audiocpu 0 good no
arcade a-2.k2 4096 8913c94e 6c4fe065217a234d45761f8ad4d2c4e7078a0abd audiocpu 1000 good no
arcade a-3e.k3 4096 a8fa5095 5cabe5497a79a0c43e78a84ae87c824af60a2a3f audiocpu 2000 good no
arcade a-4.k4 4096 93f81317 167708be94cb9a47290067a20bc5ff6f018b93b6 audiocpu 3000 good no
arcade a-5e.k5 4096 b5bcdb4e db0965e5636e0f4e9cd4f4a7d808c413ecf733db audio2 0 good no
arcade a-6.k6 4096 24832b2e 2a67888e86ce1a3182303e841513ba2a07977359 audio2 1000 good no
arcade a-7e.k7 4096 20ebea81 473c688365b256d8593663ff95768f4a5bb1289d audio2 2000 good no
arcade a-8.k8 4096 b833a15b 0d21aaa0ca5ccba89118b205a6b3b36b15663c47 audio2 4000 good no
arcade a-9.k9 4096 cbd76ec2 9434350ee93ca71efe78018b69913386353306ff audio2 5000 good no
arcade b-1e.a1 4096 97886542 01f4f9bd55f9eae28162cbb22a26f7cda22cd3f3 maincpu 0 good no
arcade b-2e.c1 4096 184ffcb4 829d6ca13773aba7c3a81e122171befbe3666110 maincpu 1000 good no
arcade b-3e.d1 4096 b7b10ac7 51d544d4db456df756a95d7f1853fffed9259647 maincpu 2000 good no
arcade b-4e.e1 4096 fb02c736 24466116dd07b856b1afff62b8312c67ff466b95 maincpu 3000 good no
arcade b-5e.g1 4096 b2788ab9 eb1a6b41f4c7a243481bfccf2b068ce1bc292366 maincpu c000 good no
arcade b-6e.h1 4096 77d7aa8d 62aaf582ba55f7b21f6cf13b4fb6c2c54bb729f5 maincpu d000 good no
arcade b-7e.a5 4096 ddd4158d 9701e2d8a0226455dfbed650e58bb4be05918fe8 gfx1 0 good no
arcade b-8e.c5 4096 b1331b4c fa1af406ecd6919b4846aea68d3edb70106f9273 gfx1 1000 good no
arcade prom.g9 32 b7ea00d7 f658c6ac8123ae1e6b68ae513cc02c4d9d2b4e47 proms 0 good no

Chips list

name tag type clock
8-Bit R-2R DAC dac audio
AY-3-8910A 8910.1 audio 1789772
DISCRETE konami audio
Speaker speaker audio
Z80 audio2 cpu 1789772

Categories

MAMEinfo

0.111u3 [Pierpaolo Prazzoli]


WIP:

- 0.145u6: hap added preliminary protection emulation to Monster Zero. Note: The initial protection routine is on the maincpu at $c591-$c676. It accesses the 8255, expects an irq, and reads $d800 256 times which is xored against data starting at $0100 to confirm a checksum stored in $0011-$0019. Then it reads the (presumably)same block to store it in RAM at $3800-$3fff. 9 blocks in total. It is presumed that this data comes from another ROM, and scrambled/encrypted a bit. The data(code) in the extra RAM is later jumped/called to in many parts of the game.

- 0.132: Tafoid and Fujix changed year to 1982 (Arcade TV Game List book).

- 0.124u1: Added Discrete sound. Changed visible area to 224x768 and palettesize to 32 colors.

- 0.111u3: Pierpaolo Prazzoli added 'Monster Zero' (Nihon 198?).

- 23rd May 2005: Pierpaolo Prazzoli - Monster Zero (Nihon Game 1982) has a weird protection which seems to test some values from program code, but it also seems to provide extra code to extra ram which will probably need a trojan to extract it.

- 10th April 2005: Tomasz Slanina - First look at Monster Zero (Scramble hardware with few additions like extra RAM ).

History


Arcade Video game published 37 years ago:

Monster Zero (c) 1982 Nihon Game Company.

Six-stage full colour video game. A player mist raise 10 flags in each stage by shooting the enemies, and the player can process to the next stage. When he successfully survives through a cycle of six stages, he can go on into the next cycle which increases difficulties.

- TECHNICAL -

Main CPU : Zilog Z80 (@ 3.072 Mhz), (2x) Zilog Z80 (@ 1.78975 Mhz)
Sound Chips : (2x) General Instrument AY8910 (@ 1.78975 Mhz), DAC

Palette colors : 106

Players : 2
Buttons : 2

- TRIVIA -

BOARD A (SOUND BOARD)
BOARD B (PROGRAM ROM)

- CONTRIBUTE -

Edit this entry: https://www.arcade-history.com/?&page=detail&id=10586&o=2