If anyone has any findings, post 'em here!

The reason I'm posting this thread is, while we have ColonelSanders explanation of how to replicate this glitch, it's also possible to have the glitch persist over the entire run and not just individual levels as he is talking about.

IFS persisting over several runs for LifeL1ke

ColonelSander's method of replicating this:

Save file with the glitch active:
(the files weren't named so I just uploaded all of them. In game, the save is named 00_Inf_Speed)

https://dl.dropboxusercontent.com/u/13839030/o.zip

Looked into some related memory stuffs:

http://pastebin.com/QFvwSPcY