This video shows about codes in Crushed by a Speeding Wall. It can help you with those steps you follow.
If it doesn't work or it's outdated, comment down below to let me know.
Codes that are still here to this day:
1: 641139 (second part)
2: 31099 (fifth part)
3: 1337 (sixth part, upside-down "LEET")