What did I just watch? That sort of "bloodbath from super-powered being escaping futuristic prison" thing was stale 30 years ago. Every now and then something fresh comes along, like the escape at the beginning of Elfen Lied, but generally, no. Yours wasn't just stale, it was like having to sit through someone else playing an FPS game. Six minutes is not too short to have a little bit of character development.
With no background story, or any history of torture to him, looks like we have a mass-murderer here. Under any circumstances, this amount of rage and killing spree is unwanted that would brutally unhinge limbs of any person be it an enemy soldier or someone else. Everybody serves a superior for bread and butter. You made me raise some ethical questions which you should address through a supporting story. No question on the quality of the animation though.
