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Border Down (Rev A) (GDL-0023A)

  1. Game infos
  2. Sound
  3. Driver
  4. Inputs
  5. Controls
  6. Display
  7. Configurations
  8. Dipswitchs
  9. Roms list
  10. BIOS set
  11. Chips list
  12. Disks list
  13. Categories
  14. MAMEinfo
  15. History
Download bdrdown.zip (17 KB)
Snapshot

Game infos

Description Border Down (Rev A) (GDL-0023A)
Name bdrdown
Manufacturer G.Rev
Year 2003
Runnable yes
System arcade /
Number of players 1P
Added to MAME .130u1
Romset size 17 KB
Romset file 2 files
Romset zip 1 B
Language English
Genre Shooter

Sound infos

Sound_channels 2

Driver infos

Driver status preliminary
Driver emulation preliminary
Driver color good
Driver sound imperfect
Driver graphic imperfect
Driver cocktail
Driver protection
Driver savestate yes

Inputs infos

Input service yes
Input tilt yes
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 no 640 480 61.702586 26917136 820 0 640 532 0 480

Configuration

name tag mask
Bilinear Filtering
Name No
Value 0
Default yes
Name Yes
Value 1
Default no

MAMEDEBUG
1
Disable Render Calls
Name No
Value 0
Default yes
Name Yes
Value 2
Default no

MAMEDEBUG
2
Master CPU Clock Rate (Cheat)
Name 100%
Value 0
Default yes
Name 12.5%
Value 12
Default no
Name 25%
Value 8
Default no
Name 50%
Value 4
Default no

MAMEDEBUG
12

Dipswitchs

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade 317-5097-jpn.pic 16384 16d2a748 5358f89c26427428840fd9af7d584a55db5a76de pic 0 good no
arcade bdrdown-default-eeprom.bin 128 5b19727c 1dd9c721d58e4542d04afe17baa77980d0ed8b6a mie_eeprom 0 good no
arcade epr-21576e.ic27 bios0 2097152 08c0add7 epr-21576e.ic27 e7c1a7673cb2ccb21748ef44105e46d1bad7266d maincpu 0 good no
arcade epr-21576g.ic27 bios1 2097152 d2a1c6bf epr-21576g.ic27 6d27d71aec4dfba98f66316ae74a1426d567698a maincpu 0 good no
arcade epr-21576h.ic27 bios2 2097152 d4895685 epr-21576h.ic27 91424d481ff99a8d3f4c45cea6d3f0eada049a6d maincpu 0 good no
arcade epr-21577e.ic27 bios8 2097152 cf36e97b epr-21577e.ic27 b085305982e7572e58b03a9d35f17ae319c3bbc6 maincpu 0 good no
arcade epr-21577g.ic27 bios7 2097152 25f64af7 epr-21577g.ic27 99f9e6cc0642319bd2da492611220540add573e8 maincpu 0 good no
arcade epr-21577h.ic27 bios6 2097152 fdf17452 epr-21577h.ic27 5f3e4b677f0046ce690a4f096b0481e5dd8bb6e6 maincpu 0 good no
arcade epr-21578e.ic27 bios5 2097152 087f09a3 epr-21578e.ic27 0418eb2cf9766f0b1b874a4e92528779e22c0a4a maincpu 0 good no
arcade epr-21578g.ic27 bios4 2097152 55413214 epr-21578g.ic27 bd2748365a9fc1821c9369aa7155d7c41c4df43e maincpu 0 good no
arcade epr-21578h.ic27 bios3 2097152 7b452946 epr-21578h.ic27 8e9f153bbada24b37066dc45b64a7bf0d4f26a9b maincpu 0 good no
arcade main_eeprom.bin 128 fea29cbb main_eeprom.bin 4099f1747aafa07db34f6e072cd9bfaa83bae10e main_eeprom 0 good no
arcade x76f100_eeprom.bin 132 3ea24b6a x76f100_eeprom.bin 3a730ebcf56e0060fef6b1b02eb2eb7cfb7e61dc naomibd_eeprom 0 good no

BIOS set

name description default
bios0 epr-21576e (Japan) yes
bios1 epr-21576g (Japan) yes
bios2 epr-21576h (Japan) yes
bios3 epr-21578h (Export) yes
bios4 epr-21578g (Export) yes
bios5 epr-21578e (Export) yes
bios6 epr-21577h (USA) yes
bios7 epr-21577g (USA) yes
bios8 epr-21577e (USA) yes

Chips list

name tag type clock
AICA aica audio
ARM7 soundcpu cpu 2822400
M68000 comm_board:m3commcpu cpu 10000000
SH-4 (little) maincpu cpu 200000000
Speaker rspeaker audio
Z80 mie_maple:mie cpu 13500000

Disks list

name md5 sha1 merge region index status optional
gdl-0023a 1bd2594ca5be9423aad1a848f14d8891c0b2806a gdrom 0 good no

Categories

MAMEinfo

0.130u1 [?]


GDROM required


WIP:

- 0.154: MetalliC updated bdrdown CHD to latest SHA1.

- 0.146u5: Redumped GD-ROM for 'Border Down (Rev A) (GDL-0023A)' [The Dumping Union].

- 0.142u3: Added bdrdown-default-eeprom.bin rom.

- 0.130u2: Changed description to 'Border Down (Rev A) (GDL-0023A)'.

- 0.130u1: Added 'Border Down (GDL-0023A)' (G-Rev 2004).

- 2nd March 2009: Guru - A few more NAOMI GDROM titles just got dumped like 'Border Down'. Thanks to tokrot.


Other Emulators:

* Demul

* Makaron

* nullDC


Recommended Games (Defender 3D):

Zaxxon

Super Zaxxon

Stinger

Viewpoint

Choutetsu Brikin'ger - Iron clad

Gratia - Second Earth

G-Darius Ver.2

Border Down



GDROM: 1.25 GB (Compressed: 195.3)

History


Sega NAOMI GD-ROM published 16 years ago:

Border Down (c) 2003 G.Rev.

- TECHNICAL -

GD ID: GDL-0023
Runs on the "NAOMI GD-ROM System" hardware.

Players: 1
Control: 8-way joystick
Buttons: 3
=> [A] Shoot, [B] Break laser, [C] Speed

- TRIVIA -

Released in September 2003.

Super Sweep Records released a limited-edition soundtrack album for this game (Border Down - Soundtracks - SRIN-1009) on 25/09/2003.

- TIPS AND TRICKS -

* Border Down mechanics : This game is named 'Border Down' because it has a new approach to level design : you can choose, at the beginning, your border to start the game on. Every stage has 3 borders : green, yellow and red ('easy', 'middle class', 'maniac' difficulty).
Every time you get hit, you will move one border down, and thus go from green to yellow border, then from yellow to red, then it's game over if you get hit on red border.

* Border Down weapons :
1) Forward laser : it is shot by holding down the 'A' button and it's a frontal (left to right) stream. Now, one thing you will surely notice is that your power level seems not to be 'homogeneous' : the level 1 forward laser is narrow, but pretty powerful, almost like a piercing attack, even more than the wider level 2 attack. Don't be fooled : the level 2 attack is better, you just need to aim all the bullet streams on the enemy. The same discourse is valid for the level 3, level 4 and level 5 shots, bearing in mind that that they're even wider, so point-blanking the enemy becomes the best option in some cases, in order to place all hits on said enemy. Also, the closer you are to the right side, the higher the fire rate is. This means that if you're close to the right side (or an enemy), you will shoot more lasers. Point-blank or close-to-right-border positions will grant you a rate close to auto-fire... the inverse phenomenon will appear if you're close-to-left or very distant from enemies,of course.

2) Homing laser : it is shot by tapping the 'A' button, and is pretty useful when dealing with enemies from all angles, but its lower fire rate renders it almost useless when dealing with tougher (and larger enemies). A wise mix of both attacks can be pretty devastating, though. Damage is actually the same, if you compare the two different attacks. One interesting thing is that, if you destroy an enemy one of your homing lasers was going to hit, the laser will change target : if it can't hit targets, it will go outside the screen. The point-blank discourse is valid for this attack too, you still have to tap when shooting, of course. Once we have explained what are the basic attacks controlled by the 'A' button.

3) Break laser (BL) : it is your smart bomb and the key to access higher scores (more on this in the score section). It's simple to use it : press 'B' button and hold it if you need to. It's usage is limited by the amount of energy you have in stock. When triggering the laser, you will immediately consume half a bar of energy, and after a second the energy will start going down at the rate of 1 bar every ~2.5 seconds (not absolutely sure). This actually means that you can you can shoot a continuous BL for ~12.5 seconds, provided that you don't get killed or you trigger a Break Laser Sphere. The damage the laser does can be considered as roughly about twice the damage dealt by a full level 5 forward shot at point blank.
The BL has also a far more important purpose: it cancels all bullets on its path (but see below for some notes). Aside increasing your score, it also helps 'cleaning up' the screen from unpleasant messes of bullets. Actually, the are two attacks that can't be canceled by the BL : the floating mines (they will explode if hit, though) and one attack from the 6A/6B final boss.

- PORTS -

* CONSOLES:
Sega Dreamcast (2003)

- CONTRIBUTE -

Edit this entry: https://www.arcade-history.com/?&page=detail&id=4080&o=2