Thanks for your evaluation!
The first person view were initially implemented when I made the game for the Creative Core Pathway as it stated that we needed to have different cameras. I'm well aware that though this feature is a bit cool it doesn't add any benefit to gameplay instead the opposit.
Graphics is also one thing that I didnt put that much effort into, just wanted everything to work. But I will have to rework it later. Same goes for leveldesign and difficulty curve.
Nice that you found the "E" button. It was added as an debug feature and there is also a skip to next level if you press "T" which I dont think anyone mentioned they found...