Here is a full level hack for F-Zero which changes all the tracks to new ones for you to race on!
Please do not forget to use the Japanese F-Zero ROM when applying this patch!
F-ZERO Hacking Stage 10thmix
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F-Zero (Japan).sfc (NOINTRO)
CRC32: 7681EFC1
MD5: 2656D9781A90440E2C5BE39F512A80C4
SHA-1: 54D06D143383DE0354788B07314C7DC238575DD0
SHA-256: 592614CA2ADA6AAA9098A614C185D5F9DEAD90D9A16178A52498151ECB2D8995