Thank you very much for the feedback ^_^
About the run... Well, the game does have random elements. Lots of them. We of course did some parameters tweaking, but it's still random . I never had a run I could not succesfully finish even if I did everything right, but it doesn't mean that there can't be such a run at all. Usually, if you do everything right, the monster moves far behind the screen, it all gets a bit less intense, so you can gather the last code snippets in a relative peace. There is a very rare unity-physics glitch tho, that makes you stuck to a platform... But if you haven't experienced that, then it was just probably a series of really unlucky random results. Like items spawning with the most possible delays, so you keep slowly sliding left, because there's literally nothing to help you move right.
If you want, just try another run. Should go better )