I can't seem to get this code to work. After placing in the top 5 of any race, I enter ?PB as my initials, but it doesn't unlock all the tracks or boats. Can somebody tell me what I'm doing wrong?

Bah, half the fun was trying to unlock everything - a couple of those tracks took me many hours to finally beat. Once everything was unlocked I don't think I ever played it again.

Did you start a new game? I think you have to get first place in a beginner track, not just in the top five.

I could never get any of those "codes" to work at all - even though I managed to unlock all the "reg" tracks, I just downloaded a save file from the internet with all the tracks open.