Hi I made a Discord server in case anyone wants to talk about or get help with speedrunning this game. https://discord.gg/jqESnRr
I've seen people run this game and it seems very interesting but I don't think I can learn it without a tutorial tbh. PenAgain could you make one please? :)
So while I'm far too terrible to make a decent tutorial, I thought I could at least link to some of the biggest timesaves in the run.
Sprinting in the water section:
Skipping the box in the taxi garage:
Skipping through a Rat puzzle:
Skipping the radio monologue before being captured: http://www.twitch.tv/vlada3/c/3738946?t=46m
Edit: It's also come to my attention that you can skip the treehouse cutscene and the helicopter cutscene at the very end of the Rat's son skyscraper by checkpoint-restarting at the beginning.