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Arcade
Arcade
Platform:

Digger

| 1980
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Notes:
Release type:
Units produced: Sega
Controls/Input Device: Control(joy4way), Buttons(2)
Number of Players: 1
Rating:
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URL: Reviews:
Digger VGMuseum Game Endings
Digger on CAESAR
Digger high score and replay at MARP
Digger on datObase
MAME folder name: digger

Display: raster 256x224 @ 60.00Hz (60.00 pixclock)
Sound: 0 channels

Emulated in MAME via driver vicdual.c:
Status: preliminary; Emulation: good
Graphic: good; Sound: preliminary; Color: good
Palette size: 0; Savestate: unsupported

Roms:
316-0206.u14 with 32kb
sha1:7cff2741866095ff42eadd8022bea349ec8d2f39 crc:9617d796
316-507 with 32kb
sha1:b09241b532cfe7679e837e9f3e5956cfc588a0be crc:fdb22e8f
684.u27 with 1024kb
sha1:1e55dd95b07b562dcc1e52ecf9460d302b14ee60 crc:bba0d7c2
685.u26 with 1024kb
sha1:8260ca809a3a20a52b146d357253aa958d08887e crc:85210d8b
686.u25 with 1024kb
sha1:de8dbe56c4c71b5d75e77c39cfbd771b91c0db0f crc:2d87238c
687.u24 with 1024kb
sha1:d357e195a6e61615b0e8cfb027628c2ce5f2b1c5 crc:0dd0604e
688.u23 with 1024kb
sha1:f4c08c7c8f1e9cee84bf844810f006d27bd35025 crc:2f649667
689.u22 with 1024kb
sha1:413f5df7eedb67848119c675e4edd1ce211ded24 crc:89fd63d9
690.u21 with 1024kb
sha1:44c0712cc1e11255dc0e27f4754984885c9fa8ad crc:a86622a6
691.u20 with 1024kb
sha1:59306dbc350dc64a17ad2f9909ef00e9860c56e7 crc:8aca72d8
Mameinfo.dat entry:
0.37b10 [Yochizo]


WIP:

- 0.147u2: hap fixed clone Omega Fighter Special. The game fails to boot or finish post. After showing bad rom errors, the game resets.

- 0.147u1: Fixed maincpu rom loading.

- 0.122u7: Fixed gfx1/2/3/4/5 rom loading.

- 0.89u3: Changed Z80 CPU2 clock speed to 5MHz.

- 0.37b10: Yochizo added 'Omega Fighter' (UPL 1989) and clone Omega Fighter Special.

- 21st November 2000: Yochizo fixed some graphics bugs in the Omega Fighter / Atomic Robo-kid driver.

- 8th November 2000: Yochizo sent in a driver for Omega Fighter and Atomic Robo-kid.

- 25th April 1999: Dumped Omega Fighter Special.


LEVELS: 8 (restarts once)


Other Emulators:

* FB Alpha

* JFF

* Raine


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Mars Matrix: Hyper Solid Shooting


Romset: 2016 kb / 8 files / 457.8 zip


Credits Mameinfo and Mametesters Project Robert J. Rabgno et al.
History.dat entry:
Digger (c) 1980 Gremlin Ind.

Digger is a game that requires you to dig strategically placed holes within a maze format so you can capture and fill in over the invading creatures before they can attack and destroy your man. The maze format changes with every round played.

The creatures are confined behind a wall. In the first of three rounds of game play, four creatures are let out of the holding area through a gate. You must conquer these four before advancing to the next round, where you face six creatures. Your third round has you battling eight creatures. This process is repeated and the point value increased with each three-round victory. Also, creatures' speed increases each round. Any contact at all with the creatures will be fatal to your man.

While you are busy digging holes and entrapping creatures, the rest are behind the retaining wall scurrying back and forth. After about three minutes, the gates at each end will open and all of the remaining creatures will stream into the play area at once. However, a skillful player will conquer all of the creatures of each round and the gate will not be a threat.

- TECHNICAL -

Game ID : 684-691

Main CPU : Zilog Z80 (@ 1.93356 Mhz)

Screen orientation : Vertical
Video resolution : 224 x 256 pixels
Screen refresh : 60.00 Hz
Palette colors : 64

Players : 2
Control : 4-way joystick
Buttons : 2
=> [A] DIG, [B] FILL

- TRIVIA -

Digger was released in June 1980.

A hidden message can be found in ROM chip 691.u20, starting at 0x19E:
WRITTEN BY DAVID L. EVANS, 4535 TAFT AVENUE, LA MESA, CALIF. 92041
AND BEAT OUT ON THE KEYBOARD OF A NOVAL 765!
THANK YOU TERRY, BARBARA, CRAIG AND LARRY FOR SOME DEBUGGED SUBROUTINES...
JUNE 25, 1980 GREMLIN/SEGA INC.

- SCORING -

The point value per creature increases with each three-round phase.
The first phase awards 300 points per creature, decreasing to 100 points if not filled over promptly.
The second phase awards 500 points per creature, decreasing to 300 points.
The third phase awards 700 points, decreasing to 500 points.

- TIPS AND TRICKS -

* A double score bonus is awarded if you capture and fill in over the RED creature before any of the GREEN ones. But, this must be the FIRST creature defeated, or the RED creature becomes GREEN and no bonus is awarded.

* A 1000 points bonus is given if you capture four creatures in a row at full point value during any one round.

* When a creature is captured, 8 squeaking sounds are heard before the creature escapes from the hole. 5 squeaks are required to cover a creature, so you must hurry to the hole and Fill before the 4th squeak, or the creature will emerge and devour your man.

- STAFF -

Written by : David L. Evans

- CONTRIBUTE -

Edit this entry: http://www.arcade-history.com/?&page=detail&id=639&o=2


Licensed from Alexis Bousiges under a CC Attribution 3.0 License
cheat.dat entry:
20800000 1724 000000C9 FFFFFFFF Invincibility
00000000 E464 00000003 FFFFFFFF Infinite Lives PL1
00000000 E465 00000003 FFFFFFFF Infinite Lives PL2

Credit Pugsy's MAME Cheat file
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