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Rogue Trip Big Daddy (Read 8042 times)
Luis
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Rogue Trip Big Daddy
01/10/15 at 20:44:07
 
Can someone make a Gameshark code to use Big Daddy in every stage? You can only use him in Nuke York in challenge mode.
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Re: Rogue Trip Big Daddy
Reply #1 - 01/13/15 at 05:23:33
 
I don't normally hack PS1 games, but what you asked about piqued my interest Smiley.

Tried out Rogue Trip out in an emulator called No$psx (it has a built-in debugger) and used Cheat Engine to hook into that emu's live memory. Hacking the character select menu was super easy.

Big Daddy's screen can be switched to after selecting any mode/level. However, when I tried selecting him in levels other than Nuke York, he'd say something and loading would commence... only to fail around 3/4 of the way through Sad. The game freezes at that point. I was able to play as him in Getaway mode's Nuke York level though, which can't normally be done with the password method. As for 2 player mode, I wasn't able to get No$psx to emulate player 2's controller, so I haven't been able to test that out.

This might mean Big Daddy's character assets are bundled into Nuke York's level files to some degree. If that isn't the case, a much more powerful/complex hack may be needed to make him playable in all levels. More experienced PS1 hackers than me would need to look into it.



If you (or anyone else) is interested in trying out what I did, here's a brief guide:
  1. Launch No$psx (or any other PS1 emulator - probably doesn't matter) and start up Rogue Trip.
  2. Select any mode/level and go to the character select screen.
  3. Attach Cheat Engine to your emulator's OS process.
  4. In Cheat Engine, search for 0 while at Meat Wagon's screen.
  5. Press right to go to the next character's screen, and search for 1 in Cheat Engine. Repeat this process a few more times until you're down to roughly 4-10 search results.
  6. Add your search results into Cheat Engine's address list and modify their values to 14.
  7. Big Daddy's character select screen will now appear.
Notes:
  • You'll need to search for character ID addresses again in Cheat Engine every time you restart your PS1 emulator.
  • No$psx has its own built-in memory viewer (showing real PS1 memory addresses), but from what I can tell it doesn't seem very straightforward to use it to search for specific values in memory.
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Luis
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Re: Rogue Trip Big Daddy
Reply #2 - 01/13/15 at 07:24:49
 
So it's difficult like Minion in TM1? Sad No one has been able to make Minion playable in every stage except for rooftops yet. Maybe I can try asking Blade Arma in Youtube. He made the code that makes Dark Tooth with his head as a cpu in every stage.
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Re: Rogue Trip Big Daddy
Reply #3 - 01/13/15 at 17:10:49
 
Can anyone tell me how to play as Minion in TM1 rooftops?

Always wanted to have a blast and can't find the method...

Cheers

Smiley
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Re: Rogue Trip Big Daddy
Reply #4 - 01/24/15 at 02:01:23
 
Sorry if it seems like I'm ignoring these kinds of requests. I consider myself to be pretty decent at hacking PS2 games (especially Incognito/ESP's), but aren't very familiar with PS1 game hacking.

It's too bad most of the TMA's old PC/PS1 hacking community is MIA nowadays Sad.



Regarding TM1 Minion hacks, here are some relevant excerpts from a few sites I found while Googling...

Cheat Code Central - Twisted Metal Cheats
Quote:
Game Shark Codes

Start on Level ?
D018ED04 0000
8018ED04 000?

Always Play Level ?
8018ED04 000?

Character is Always ?
801FF6A4 000?

Quantity Digits to Accompany Level Modifier Codes
00 - Arena Duel
01 - Warehouse
02 - Freeway
03 - Park
04 - Cyburbia (1P Mode Only)
05 - Rooftop
06 - Arena

Quantity Digits to Accompany Character Modifier Codes
00 - Sweet Tooth
01 - Yellow Jacket
02 - Darkside
03 - Outlaw
04 - Thumper
05 - Crimson Fury
06 - Pit Viper
07 - Warthog
08 - Mr. Grimm
09 - Spectre
0A - Hammerhead
0B - Road Kill
0C - Minion (glitches)


Twisted Metal Wiki (Wikia) - Minion
Quote:
Trivia

A gameshark code exists for the original Twisted Metal that allows the player to change whatever they select to play as into Minion: 8018EFA4 0082 8018EFCC 0050

However, Minion can only be accessible whilst playing on the Rooftop Stage. The following code will ensure you will always start there: 8018ED04 0005. This has not been confirmed to work with the actual console and disk, but is confirmed to work via emulation.
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Luis
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Re: Rogue Trip Big Daddy
Reply #5 - 01/28/15 at 16:53:10
 
Minion doesn't work on consoles. It just freezes when you start the stage. Would it be possible to make a code to play on the multiplayer only stages in single player, such as Power Plant and Sewer in TMB with bots?
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Re: Rogue Trip Big Daddy
Reply #6 - 01/29/15 at 05:27:53
 
Luis wrote on 01/28/15 at 16:53:10:
Would it be possible to make a code to play on the multiplayer only stages in single player, such as Power Plant and Sewer in TMB with bots?

At around the time I discovered Mini Junkyard, I looked into "proper" TMB hacks to play in any level in any mode, but couldn't get it fully working. My PS2 game hacking skills have improved considerably since then, but this kind of level select hack is likely to be complex and time-consuming to create. Plus I have many more important things to deal with nowadays (like enhancing the TMBO revival server, etc.). So don't expect anything to come out of this anytime soon Sad.
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Shalashaska
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Re: Rogue Trip Big Daddy
Reply #7 - 02/09/15 at 19:51:14
 
Why the flamethrower special of the playable version does not damage at all? Is it fixed in the pal version?
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