WinHex works well for comparing the code to the retail ROM.

Unfortunately it seems that the ROM is the same as the retail... too bad.

The MMX 0.2? Damn, that's too bad. Still an interesting item.

I don't get it, why does it says 0.2 and it's 1.0? what the fuck.
I'm disappointed.

I guess 0.2 just wound up being the final version or something, or maybe they reused the EPROM and label for a new version without updating the labeling.

Glad it worked!
 
If you ever get stuck dumping something with the Retrode just hit me up! So far I've had 100% success with it over 100 different prototypes.(Not all mine of course!) But it can require a bit of adjustment to dump the game you want properly. It really could use better documentation. After the Christmas season I'll see if I can write up a guide with my experiences!


Sorry to hear that, but thus is the way of the proto. It happens to all of us! That label could have indicated at one point it had version 0.2, but it was written over later as they worked on it and no one ever changed the label.

Personally I think the history of what was on it, and what it was used for is still super cool and one of a kind! =)

If it was Rockman X than you would of had a better chance of it being different but still a awesome game to own.

I have Mega Man 2 and Mega Man 3 protos that differ significantly from the final versions.  Lots of stuff changes on that trip across the ocean.
 

That's something I'd really look forward to!

It is pretty easy to compare two binaries with nsrt.

nsrt -fc file1.sfc file2.sfc > diff.txt

Where File1 is your prototype, and file2 is the final version (note there are a couple of revisions of Mega Man X). Since the checksum on the chips are different, I would expect at least minor differences from the final version (though check with NSRT, that would easily confirm it).

It really doesn't surprise me that this prototype is not very different (if at all) from the final version. The US version of Mega Man X was pretty much just a straight ahead text translation of Rockman X, with a couple of minor bug fixes. It is possible that your prototype might have some minor differences in text. I've encountered prototypes like that before, such as Breath of Fire 2 and Lufia and the Fortress of Doom - pretty much complete localizations with some spelling errors. If you really want to see an early verison of Mega Man X, you have to go after Rockman X prototypes (I think at least one exists). It is always a roll of the dice to buy a prototype without having any gameplay footage, though.

Here is the ROM:
https://www.wetransfer.com/downlo...

Feel free to check it anyway you want, although as i recall - it's not different from 1.0 version.
Too bad if they rewrote the final version on the 0.2 version.
badinsults - i agree with you that the US version should be just translation of Rockman X but i was hoping that maybe 0.2 was early version they received from japan just for checking.

Yeah, it is indeed identical to the final game.

Hey, guys. I found the Nintendo 64 demos. Enjoy.

https://app.box.com/s/q7hslsr0kj6...