Yes I noticed the AI blindspot too, though the thing is, it only really matters for only the third AI (the one next to the glass walls). For the first AI its simpler to just wait till it turns around (using it's blind spot there is pointless). For the second AI, it's easier to hide behind the grey cube than use it's blind spot. For the fourth, you only go there when you need it to kill you for it's color. The third AI obstacle however is affected by the blindspot which is why I updated it in the second version, now it shouldn't be possible to take advantage of it's large turn radius (unless you somehow pulled it off still in the updated game??). So you should only be able to use the intended method to get through there now.
I personally prefer the difficulty of a single hit kill, it forces the player to be more careful and precise with his movements.
I feel you there in regards to sfx, I actually just played the sounds raw without even modulating them in any way lol. For one of the assets, the one that I really wanted to use couldn't be imported to ue4 due to improper format, it definitely fit better.
My idea there was to force the player to die in order to force a color change (for difficulty purposes). Though ya I do agree that once the blocks are lined up properly, there is little need to k.o yourself (though it's pretty inline with "failure is inevitable" tbh).
Glad you liked bottom AI improvements, you were completely right when you said waiting time for those was too long. For the ones on top however I purposefully left the waiting time to be quite a bit longer since player had to avoid two at a time. When I tested that are with shorter AI waiting times, I felt that it was too difficult to get through on a consistent basis ( I still could do it but felt I had to be too precise with my timing to get past them). Now that I think about it, the turn radius exploit would definitely make that area waaaaay too easy, gonna be fixing that for sure (I now see why you mentioned the turn circle exploit first). I tunnel visioned too much on the bottom AI.
But ya this is like the best feedback ever! I feel really lucky that you checked out my game to the extent that you did. I will definitely try to match this feedback quality when I get to your game. Thanks again!