Must have played through the campaign dozens of times - enough to unlock every hidden character. The courses are not too complicated, but still have enough variety to be interesting - although the competition courses are a little more boring as a result since there aren't any objectives other than getting a high enough score for gold. The series eventually went downhill (pun not intended) since it started to become too complicated for its own good, but this is just fun, simple skateboarding. Also, there are some absolute bangers on the soundtrack.