There are a total of 16 types of mini parkour challenges, each designed to slow you down.
You need to make it through 20 of them, since some of the challenges may not appear at all, or appear multiple types! The catch is, you need to make it to the end in just 50 seconds.
Getting past them is no hard task since most of them aren't try to kill you, but getting past them in just 50 seconds IS a hard