Too fast.
Too fast to submit for me, but many people these days like to submit content too fast. For me a glitch could be dissapearing character.
Also, well made but it isn't much for a good game. Rather 2D shooter like Doom but with 3D camera but nothing else improved. In addition, there's nothing more than just shooting everything with your bullets. Nothing changes.
6 for graphics, 7 coz it's Madness Day anyway.