STUPID BALLZ

Can you survive this gauntlet of creative skill, level memorization, and pure determination? STUPID BALLZ!

NOTE: 80 Stars are intended, but there are actually 81 unique Stars including the possible C13 100 coin star!
Then, additionally, there is a vanilla SM74 star in a reachable pipe in Bowser 3. And also 5 vanilla SM74 Metal Cap stars you can access with a precise BLJ off of a box that you have to do 5 times each to get to a pipe in the first OW... for a total of 87 possible stars currently.