Be careful where you place checkpoints in complete mode!

When you place checkpoints in specific places where you want them to go, make sure you place them properly, otherwise, if you get a bullet bill and are unfortunate enough to use it at the wrong place, you could skip a huge chunk of the course, miss other checkpoints, and not make the lap count. Also, make sure your walls are high enough so that the bullet bill doesn't go through the wall, unless you want a player to make an unintended shortcut.

Nah imma do my own thang