Thank you so much for your feedback!! You are right about the variety in spawn heights. Also, i agree 100%, it is not clear enough which item and platform does what. My biggest challenge (besides having ideas for good gameloops, making good art, good planning and coding of course :D) is onboarding. I love games that pretty much explain themselves step by step. (like yours does btw ;-)
I should have had 5 levels, with only the last one being the endless runner and the rest introducing items and platforms step by step.
Again thanks so much for playing and also for noticing the code background ;-)