The USA release of F-Zero X will crash at startup if a Japanese 64DD is attached to the Nintendo 64 console. This patch skips 64DD loading to avoid the crash.
For F-Zero X (USA).
Author: Alex Oughton.
NOPs the instruction at 8006730C to skip 64DD load.
CRCs updated to $7D10033F, $A630EEB0.
Database match: F-Zero X (USA)
Database: No-Intro: Nintendo 64 (v. 20180814-043336)
File/ROM SHA-1: 5F658E88FFA9DE23CBA6986A8FD3D3A90D7B4340
File/ROM CRC32: B561FBA