The 60FPS experience for the original God of War (2005) depends heavily on whether you are playing on original hardware, modern consoles, or via emulation. While the original PS2 version targets 60FPS but often hovers in the 40-50 range, modern methods allow for a locked experience.
The real code is a memory patch, not a button sequence.
If you really want a raw cheat code for PS2 hardware/emulator:
For (NTSC-U):
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