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Jul - The Cutting Room Floor - Mega Man's Soccer Ending Discovered! New poll - New thread - New reply
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KungFuFurby
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Posted on 08-10-11 01:22:55 AM Link | Quote
I found the ending for the SNES game Mega Man's Soccer by hacking it. All I had to do was modify 20 10 D6 to 20 EE E0.

To access, enter the following codes (they work for either version):
81829BEE
81829CE0
Start the game. First, select Capcom Tournament, then select either one vs. CPU and select Start. Now sit back and relax. You will get the ending instead of the opening.

To find the opening and ending routines, I invented a music modifier. The music modifier is...
808BA8A9
808BA9xx
808BAA00
The range is 01-1A, 1C. 00 and 1B are silent. The game crashes after 1C.

Then, I backtracked and found calls to the desired routine. The music modifier was inside 20 A5 8B (the call to sub-routine 8BA5). There were multiple references to 20 A5 8B from a few routines. 22 1C BF 80 (a call to sub-routine 80BF1C) was the routine that I ultimately chose. I found the ending by looking for A9 18 00 22 1C BF 00 (the first hit was the one) and backtracking to the start of the routine, and the opening was found by searching for A9 1A 00 22 1C BF 80 and backtracking to the start of the routine.

View the Ending on YouTube!

No debugger was required whatsoever. All I used was a hex editor.
GoldS
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Posted on 08-10-11 02:32:45 AM Link | Quote
Holy shit, nice find! Too bad the staff credits still don't appear to be used anywhere.

____________________
Rachel Mae

Creature of Chaos
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Posted on 08-10-11 03:21:45 AM Link | Quote
Hah, nice!

I found a few of Capcom's debug routines by backtracking from the text display routine (usually LDA [text index], JSR/JSL [text display]). Unfortunately, more often than not, the code that would have loaded the debug text no longer exists...

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TheKins
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Posted on 08-10-11 10:39:01 AM (last edited by TheKins at 08-10-11 07:40 AM) Link | Quote
And here's another lost cutscene (mentioned in your video description, but hey): Protoman
KungFuFurby
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Posted on 08-10-11 06:02:29 PM (last edited by KungFuFurby at 08-10-11 03:31 PM) Link | Quote
I found another secret: the game has an animation test. First, here's the same ending code that plays even earlier (as a matter of fact, it's right on startup!):

8089FDxx
8089FExx
8089FFxx

Just fill in the blanks in order: EE E0 81 for the ending. The animation test is EC A7 82.

Also, I require it in order to view the animation test, which is in a completely different bank. Otherwise, you'd be doing a little bit of overwriting (it will still work, but you need to modify 20 into 22, and you'll have to overwrite one byte after that). I used a method to find a bunch of cutscenes (actually a bunch of in-game stuff), and Protoman is not one of them that uses this. The code that starts a very good chunk of the game cutscenes (and pretty much a lot of other stuff, as menus and in-game are also covered) is E2 20 A9 xx 48 AB C2 30. xx is 80, 81, or 82, mostly depending on the bank (in my case, I failed on all hits for that with xx = 80).

Here's all of them that I could get direct from the Capcom Logo using this method with the scene at Capcom Logo modifier:

B9 9E 81 - Member Select
37 A7 81 - Formation Selection
ED A8 81 - Field Select
89 AD 81 - Position Select
20 BB 81 - Supposed to be the Password, but the tune only barely plays before it switches to the default scene, the Title Screen.
E8 C0 81 - League
E2 C8 81 - Opponent Introduction
10 D6 81 - Opening
CF DA 81 - Protoman (plays over and over again)
A5 DB 81 - Cast Roll
15 E0 81 - Presented by Capcom
7F E3 81 - A random Main Menu. No idea. It's completely blank.
EE E0 81 - Ending
00 80 82 - Capcom Logo
2D 80 82 - In-Game
9E 84 82 - In-Game (again)
45 A0 82 - P.K.
EC A7 82 - Animation Test, of all the irony!
4C D1 82 - Game Over

Some of the values are not supposed to be used this early, so they either boot you back to the title screen or you'll just make the game go horribly wrong.

P.S.: I tried looking for B l a z e o n ' s (SNES) ending by using a reference for its apparent ending tune. In that case, I think the ending got wiped out, as I couldn't find that one.
Sails
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as a video game‎‎‎‏‏‎ grows old its content and‏‏‎ internal logic‏‏‎ deteriorateÿ
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Posted on 08-12-11 04:13:34 AM Link | Quote
I guess I'll drop this here, since I pasted it to IRC the other day.

Staff Credits Found in...The Password Screen?!

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Jul - The Cutting Room Floor - Mega Man's Soccer Ending Discovered! New poll - New thread - New reply


Rusted Logic
Acmlmboard - commit 47be4dc [2021-08-23]
©2000-2022 Acmlm, Xkeeper, Kaito Sinclaire, et al.

29 database queries, 1 query cache hits.
Query execution time:  0.107433 seconds
Script execution time:  0.014870 seconds
Total render time:  0.122303 seconds


TidyHTML vomit below
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Info: Document content looks like HTML5
Info: No system identifier in emitted doctype
Tidy found 144 warnings and 0 errors!


The alt attribute should be used to give a short description
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see http://www.w3.org/WAI/GL.
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properties such as its size and color. This will reduce
the size of HTML files and make them easier to maintain
compared with using <FONT> elements.

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of inserting <NOBR>...</NOBR> into the markup.

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