ne1 got the 60hz codes for NBA2k1 an Cosmic Smash?
 

I couldn't patch them so far, so maybe a hex string or other solutions available?

I don't know if you're still looking for that, but this patch works with Cosmic Smash :

Change
0C 84 02 2F F2 60 31 88
By
30 E0 02 2F F2 60 31 88

You'll get a 60 Hz / full screen game.

ta, I solved cosmic smash some time ago indeed, but an NBA2k2 hex is still welcome :)

But i think there is no hex for this game as the beginning and FMV runs 60hz and when it goes to the title screen it changes screenmode to 50 (this is also the case with NFL2k2). Booting it with gameshark CDX lets the game run 60hz though.

I've got exactly the same problem.
But for NFL2K, the screen turns black !

I think it comes from "Main.bin".
I'll have a look at this.
I hope I'll manage to do something...

U can try booting NFL2k with a Gameshark first. Maybe (just like nba etc) its because it bypasses main.bin or something so that the game's screen will stay the same.

Yep, but I want "perfect" games. ;)