My fourth attempt on SMB2, which is about 60 seconds faster than the second version and about 30 seconds faster than the third version.
Comment from Bisqwit:
The warp from 4-2 goes to 6-1, not to 7-1. (Several people have asked me why I didn't use it.)
This movie takes the same route and character choices as previous movies but is a complete redo with greater precision.
WARNING: There are flashing lights during Rocket explosions which may cause epileptic seizures to those affected.