Tekken 4 and Tekken 5

[AnimeFan95]

Hello

This is probably going to be the most dumbest question ever but I will give it a shot...

Is there anyway to modify the PS2 isos of Tekken 4 and Tekken 5 to only include one mode? In this case, I wish for "Tekken 4" to have "Arcade" mode, and Tekken 5 to have "Time Attack" mode. The reason I am asking is because the MAME emulation of both Tekken 4 and Tekken 5 will probably never be emulated, and I want to make the PS2 isos closely resemble the Namco System 246/256 versions as much as possible. 

I am sure I will get judged immensely for asking if such a method is possible, but since it's been 8 years since the Namco System 246/256 games were added to MAME, and has made no progress, I wondered if I can achieve a near perfect arcade version with the PS2 isos....Please don't judge me... 

Many thanks for your time.

Kindest regards,
AnimeFan95

[Nobbs66]

Nope.

[AnimeFan95]

Oh. Ok.

Thank you for replying.

[JobeStroud]

Of course there is a way. Just unencrypt the code of the games. Program the modes in. basic stuff

[AnimeFan95]

Really? Can you please tell me how I would achieve this or show me the steps as to how to reprogram the games?

Many thanks.

Kind regards,
AnimeFan95

[lightningterror]

Really? Can you please tell me how I would achieve this or show me the steps as to how to reprogram the games?

This is where you come in and share your progress since we don't know how to do that

[jesalvein]

He told you how :

Just unencrypt the code of the games.

How to do it ?
er... well. Let's forget it's strictly forbidden, you will need a debugger to make some reverse engineering, do some programming (generally in C++), and finally compile your new source with a PS2 compiler.
You can skip the 1st step by directly asking Namco to kindly give you the copyrighted source they own.

[AnimeFan95]

He told you how :
How to do it ?
er... well. Let's forget it's strictly forbidden, you will need a debugger to make some reverse engineering, do some programming (generally in C++), and finally compile your new source with a PS2 compiler.
You can skip the 1st step by directly asking Namco to kindly give you the copyrighted source they own.

What PS2 compiler would I have to use to recompile the games? Stupid question I know...And can you use any IDE to decrypt the iso files?

Many thanks.

Kind regards,
AnimeFan95

[jesalvein]

What PS2 compiler would I have to use to recompile the games? Stupid question I know...And can you use any IDE to decrypt the iso files?

Many thanks.

Kind regards,
AnimeFan95

The one Sony will give you if you ask them and pay for it, i guess.

[AnimeFan95]

The one Sony will give you if you ask them and pay for it, i guess.

If I went for the first option, would I need a tool to open the iso file and edit the game files in an IDE?

Sorry for asking such weird questions. I am not a strong programmer...

Kind regards,
AnimeFan95