You are being WAY too critical for a fan made project that had a 15 person team AND is a demo. This is no where near a 6.5/10 in my mind just for the presentation it gets at least a 8/10 and the controls are great, the level design is open and also the levels have a lot of content in them. I'm not trying to be rude to you, but you are being way, way to harsh for a fan made project that is still mind you, a demo.