With regards to the Winter Gold, the patch enables the game to boot on NTSC devices (the SNES mini is one, in all regions). However the timing of the game is off, the computer players times are unbeatable. If I speed up the FX chip in the game through emulation by x1.25 or maybe x1.5 then their times become approachable. So this makes me think that CPU "ai" (time generator) code would need to be changed (slowed down) by a similar factor as the increased speed of the game.
That's very interesting! I've been meaning to import Winter Gold for some time (I have the Pro Action Replay revision that boots PAL imports) but if it doesn't play properly at 60Hz that's important information. I'd be glad to read any further information you find out about this.
A couple other notes about PAL>NTSC patches:
• There are dozens of them over at AtariAge for the entire library of PAL exclusives on the Atari 2600.
• The danger of crashes and weird behavior from 50Hz games played at 60Hz is underestimated. For example, the first Smurfs game on Genesis/Mega Drive can slow down massively or even crash in one of the last stages if you use certain attacks -- and the second Smurfs game will always
crash in the third stage at 60Hz.
• In that vein, I started a thread on Sega-16 about glitches in PAL games played at 60Hz
. Issues include screen rolling, messed-up sound or glitched graphics, and obscure crashes like the ones in the Smurfs games. OTOH Soleil works fine as long as you don't try to use a real cart.