Unplayable NES games

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Mermaids of Atlantis U
2. Total Recal U
3.

What is the expected output? What do you see instead?
They should play fine,
Mermaids of Atlantis gives grey screen 
Total recall is Glitched
What version of the product are you using? On what operating system?

0.0
Please provide any additional information below.

Hi,

I just wanted to note on an minor error I stumbled upon.

The Nes game "Mermaids of Atlantis ( U )" results in a grey screen and is 
unable to boot.

I don't know if it is fixable but, Total Recall for Nes is extremely glitched 
and therfore unplayable.

Anyway, thank you for your awesome work!

Greetings from holland,
 Hielkenator 

Original issue reported on code.google.com by hielk...@gmail.com on 5 Jan 2012 at 7:20

[GoogleCodeExporter]

 looked into Mermaids of Atlantis to see why one version was working and the other wasn't. It turns out that the non-working version is set to use mapper 8, while the working version is using mapper 79 (NINA-06) which is the version that documents state should be used for the game. That is the only difference between the two, the mappers.

Not sure why it is working in FCE ultra GX, but it appears the correct mapper 
should be 79.

Also, just checked out Total Recall, and it appears there are also two 
different versions, again with differences in the header. One is set to use 
Vertical Mirroring (which is what it should be set to), the other is set to use 
Horizontal mirroring which would account for the glitches you are seeing.

Original comment by raz0...@gmail.com on 6 Jan 2012 at 1:02

• Changed state: Invalid