Why do we even think there are EU and US versions of PoP1 for SNES?
Only 3(!) bytes differ between these two versions.
Isn't it more likely that someone modified the (single) non-JP version, and then people thought there are two non-JP versions?
Couldn't that "someone" be the developer or the publisher?
Maybe the console checks the value of the country code, similarly to DVD region codes?
At offset 0x7FD9, there's:
- US: 01
A4 00 32
- EU: 02
A4 00 31
(The JP version has 00
DD 00 C9 8A 36 75 there. Slightly related is this
According to these docs
* the 01/02/00 byte is the country,
* the A4/DD byte is the Developer ID code,
* the 00 byte is the ROM Version number,
* the remaining 4 bytes are the Checksum and its complement.
salvadorc17 wrote:Youre sure about that, no different passwords or screen/game speed??
Passwords are the same.
About the speed: The US version seems to be faster. I guess that's because the game's speed is synced to the framerate.
But that does not tell who changed the ROMs.
This walkthrough by Christian Wall
mistakenly claims that the USA version matches the Japanese, and differs from the European, based on the fact that USA and Japanese both use NTSC.
The covers on MobyGames
list the following countries:
* United States, Canada and Mexico (NTSC) -- This is the US version.
* Japan (NTSC) -- This is the JP version.
* Germany (PAL) -- This is the EU version.
* Australia and New Zealand (PAL) -- Um. Since it's PAL, this is probably the EU version?
The list of country codes
says that 02h is for "Europe, Oceania, Asia", but then it also lists 11h for Australia specially.
And then there is the list of releases