05330: tazmania, tazmani2: [possible] Pressing player 2 stick "down" causes game to think level is complete.

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
05330	Gameplay	Minor	Always	Oct 10, 2013, 17:34	Oct 10, 2013, 22:06

Tester	scoobydude51	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Bugs That Aren't Bugs	OS	Windows Vista/7/8 (64-bit)
Status [?]	Resolved			Driver	galaxian/scobra.cpp
Version	0.150	Fixed in Version		Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	05330: tazmania, tazmani2: [possible] Pressing player 2 stick "down" causes game to think level is complete.
Description	Pressing player 2 stick "down" causes game to think level is complete. I don't think this is a trick/cheat because I don't see it in the tips & tricks section of the game info. otherwise, the game works pretty well.
Steps To Reproduce
Additional Information	you have to press the button once or a few times for this "bug" to activate. the parent file with driver galaxian.c does it well also I think the bootleg does the same thing.
Github Commit

Flags	Possible
Regression Version
Affected Sets / Systems	tazmania, tazmani2

Attached Files

No.09879 Tafoid Administrator Oct 10, 2013, 21:35	Labeling this as "possible". It needs verification on original boardset.
No.09880 Tafoid Administrator Oct 10, 2013, 22:05 edited on: Oct 10, 2013, 22:07	Actually, examining the source file (galaxian.c), there is a writeup for Tazmania: 4) 'tazmania' - Press P1 BUTTON2 when reseting the game to enter sort of inputs "test mode". - After the 3 ports are read, when "Cabinet" is set to "Cocktail" and its player 2 turn, player 2 inputs are "copied" into player 1 ones (code at 0x124e : start reading inputs). - When "Cabinet" is set to "Upright", press any player 2 joystick direction to end current level (code at 0x38dd). This trick does NOT work in bonus rooms though. This has been confirmed to happen via code and only while UPRIGHT is selected in dips. Therefore, it is not an emulation issue nor regression. When you are in an upright cabinet, there are no P2 controls so I would assume this is more a debug feature they kept in. http://gamesdbase.com/Media/SYSTEM/Arcade/CP/big/Tazz-Mania_-_1982_-_Stern_Electronics.jpg

No.09879

Tafoid

Administrator

Oct 10, 2013, 21:35

Labeling this as "possible". It needs verification on original boardset.

No.09880

Tafoid

Administrator

Oct 10, 2013, 22:05

edited on: Oct 10, 2013, 22:07

Actually, examining the source file (galaxian.c), there is a writeup for Tazmania:

4) 'tazmania'

  - Press P1 BUTTON2 when reseting the game to enter sort of inputs "test mode".
  - After the 3 ports are read, when "Cabinet" is set to "Cocktail" and its player 2 turn, player 2 inputs
    are "copied" into player 1 ones (code at 0x124e : start reading inputs).
- When "Cabinet" is set to "Upright", press any player 2 joystick direction to end current level
    (code at 0x38dd). This trick does NOT work in bonus rooms though.

This has been confirmed to happen via code and only while UPRIGHT is selected in dips. Therefore, it is not an emulation issue nor regression. When you are in an upright cabinet, there are no P2 controls so I would assume this is more a debug feature they kept in.

http://gamesdbase.com/Media/SYSTEM/Arcade/CP/big/Tazz-Mania_-_1982_-_Stern_Electronics.jpg