Andrew Davie, on Fri Dec 23, 2011 8:52 AM, said:
If anyone has a SECAM unit, please let me know. This may be the ultimate in completely pointless programming effort... SECAM compatibility
I don't know if anyone will ever really play Boulder Dash on a SECAM 2600, but since you took the effort to optimize the colours for this TV standard, I thought you might like to see how it turned out. So I took some pictures of the game playing on a SECAM VCS connected to my multi-standard TV.
Unfortunately Phredreeke was right. SECAM VCSs don't like striped displays too much. When you use single line colour changes, the colour may even be different depending on which scanline you display it in (odd or even). This is most noticeable in Rockford's face, which has a different colour when he is displayed in an odd row then he has in an even row of tiles. But it also shows in the colour pattern of the dirt tiles or the boulders, where the red and blue lines differ depending on which row the tile gets displayed in.
Another thing to notice is that using PAL colours the look-around mode doesn't show the dirt tiles in some caves, while this works fine using NTSC colours. Nevertheless all tiles are still easily recognizable in both colour modes on a SECAM VCS, so the game is still just as playable as it is on NTSC or PAL colsoles.