I am on a mac and when ı tried to open the game and it said Missing Executable.And my Steam is in Turkish so ı don't know what to do help me :D

Today I saw that 2 new achievements appeared for this game: casual gamer and hardcore gamer. Nobody on Steam has them. I wonder what should I do to get them.

i cant play

Like let's be clear here I'm okay with difficult games, I enjoy difficult games. But the controls should not be difficult. Ever. I beat this game without the 100 spike-death or 1,000 deaths, it took me like an hour, but it felt far, far more like a slot machine that sometimes culminated in a finished level than any sort of interference on my part. Also the nonsensical ending and unless I'm missing something there only APPEARS to be a final level in the level selection but it doesn't actually exist. Like ...

I'm just curious, is this a genuinely decent platformer, or does it feel broken with poor level designs and/or imprecise/floaty jumps/controls? How long, and how hard? Thanks!