Thanks a lot for taking the time to play it, and for the comments!
Thank you very much for letting me know about the print string! I thought I had set it up for shipping, but if you could see that string then something was clearly off. The good news is that I will be able to easily squeeze a bit better performance when correctly set to shipping :D. That string in particular is a test for a fake achievement that you get when you die 7 times, but I didn't have time to implement it in time.
About the platform section, I had a couple of slanted platforms with the idea of having the player die once or twice, but I have been receiving feedback that people have been dying a lot. It definitely was harder than I intended. I have learned that it's hard to gauge difficulty when you know the optimal route, and which platforms are not good. Sorry for the frustration!
I will be updating the game after the rating period is over. In the first update I will have much improved performance in the main menu, and also a mission message that clearly states what to do, and is also accessible with TAB. I realize the current system is far from ideal, as the messages were ambiguous and would sometimes be overwritten by other non-informative ones.
In future updates I will also add highlighting of interactable objects and a reworked platforming section.
Thanks a lot for your time and feedback, and sorry for the frustrating parts!