I wanna see some good shit, folks!
These aren't traditional speedruns; they're tool-assisted. That means they play the games literally frame-by-frame and have constant save-states throughout the run (which is represented by the # of "re-records").
These three that I'm posting right now are actually examples of arbitrary code execution, which is basically just finding a bug in a game and being able to run a script through said bug.
Read more up on it here:
Arbitrary code execution - Wikipedia, the free encyclopedia
The first two are just scripts, but the third one is somewhat of a legit run.
I'll post more tomorrow.