Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
07849 DIP/Input Minor Always Jan 12, 2021, 01:31 Mar 7, 2021, 07:24
Tester terencew View Status Public Platform MAME (Official Binary)
Assigned To jkburks Resolution Fixed OS Windows 10 (64-bit)
Status [?] Resolved Driver
Version 0.227 Fixed in Version 0.230 Build 64-bit
Fixed in Git Commit 4bd7c96 Github Pull Request #
Summary 07849: sfposeid: Function of some Unknown DIPs in DSW1
Description Note that this is only for DSW1... I suspect difficulty may be hiding in DSW3, too tired to check!

Unknown[1&2] control "Bonus Life"
U1(off) + U2 (off) = 20k only
U1(on) + U2 (off) = 15k only
U1(off) + U2 (on) = 10k only
U1(on) + U2 (on) = 5k only

Note that in addition to checking in 0.227, I also hex-edited a 0.106 INP that plays back to >100k (which saved me from having to actually play to such a score) to see if there are additional bonus lives, but found none. While it's possible that additional lives may be issued at some score beyond 100k, it seems unlikely.

Unknown[3] controls something which I guess could be called "Infinite Lives (Cheat)"
When switched on, you appear to start with a normal number of lives, however no lives are removed from your reserve when you "die".

Haven't found a use for Unknown[4].
Steps To Reproduce
Additional Information
Github Commit
Regression Version
Affected Sets / Systems sfposeid
Attached Files
jpg file icon sea_fighter_poseidon_dip.jpg (306,255 bytes) Jan 13, 2021, 02:25 Uploaded by jkburks
TT Sea Fighter Poseidon DIP
jpg file icon sea_fighter_poseidon_inst.jpg (209,435 bytes) Jan 13, 2021, 02:58 Uploaded by jkburks
Sea Fighter Poseidon Instruction Cards
gif file icon Sea_Fighter_Poseidon_Jp.gif (92,358 bytes) Mar 7, 2021, 01:55 Uploaded by jkburks
Sea Fighter Poseidon DIP Table - Japanese
gif file icon Sea_Fighter_Poseidon_En.gif (105,234 bytes) Mar 7, 2021, 01:56 Uploaded by jkburks
Sea Fighter Poseidon DIP Table - English Translation
There are no relationship linked to this issue.
User avatar
Jan 13, 2021, 02:26
I have some photographs from an auction listing of TT Sea Fighter Poseidon. One of the photos shows the instruction cards and a photocopy of the the DIP settings page from the manual.

Unfortunately the photograph is too low resolution for me to read most of the text, but there are a number of points that can be confirmed by the image.

SWA - 3 & 6 are unused switches and are set to OFF
SWC - 3 & 4 are unused switches and are set to OFF

8 of the settings are designated as factory default (as shown by the Japanese reference symbol and the note at the top of the table)

MAME is missing the details of the two listed below.

The factory setting for SWA 1 & 2 is ON OFF – 15,000.

The factory setting for SWC 1 & 2 is ON ON. This is probably the difficulty setting but I don’t like to speculate without seeing a clear copy of the text.
User avatar
Jan 13, 2021, 03:01
I have also uploaded a photograph of the Japanese Instruction Cards. This is a loose English translation:

Sea Fighter Poseidon

•While controlling the underwater scooter, contact and rescue a friendly diver trapped in a capsule.

•When the fuel is low, the underwater scooter will blink, so press the escape button.

•When you escape, use a spear-gun to attack the enemy divers from the front and behind.

•Rescue the specified number of prisoners of war in each round and you will receive bonus points.

•When you lose all of your divers GAME OVER.

↑ Ascend ↓Descend
→Accelerate ←Decelerate
Fire Button Escape Button



•Underwater scooter ride transfer method

➀ Aim at enemy divers.

➁ Escape and transfer.

• Method to destroy the enemy command center

Two torpedoes are fired at the capsule bomb launch pad.

↓ Capsule bomb launch pad

• If you destroy the enemy command center, you will get 1,000 points, and if there is a prisoner of war player, you will get a bonus score. (5,000 points)

User avatar
Mar 7, 2021, 01:56
edited on: Mar 7, 2021, 01:57
The Sea Fighter Poseidon instruction cards and DIP Table sheet came up for auction again recently. This time the photo of the settings is more readable.

This morning I made a new image of the table in both Japanese & English. MAME is missing DIP settings for the bonus life score and the torpedo range.

The length of the arrow illustrations on the DIP Table would indicate that the default torpedo range (long) is 100%. The arrow illustration for the (short) range is exactly half the length of the default, so 50%. I’ll leave it up to the Devs to verify this and decide how to describe this in the menu.