As far as I know, you are stuck unless you can somehow track the pieces of code written by every single developer, and remove those written by those you can't reach. (law.stackexchange.com)
Then other times it meant that one track piece didn't connect properly to another, creating confusion on where to go, or worse, difficulty in reaching the next piece completely. (superphillipcentral.com)
After numerous attempts and very few special track pieces available, I took a long, hard look at the completion criteria and discovered that neither the primary or secondary criteria required passenger safety. (darkstation.com)