hey, some neat ideas in this one! violence is the first thing you reach for when thinking of mechanics for an fps game, so it's cool that this game tries to think outside the box :)
two things i'd like to critisize a bit - one, there was a weird slowdown in the 2nd or 3rd tutorial room (the one where you're introduced to the green turret). two, i didn't quite get the hang of the wall-running mechanic, and kind of cheesed the bits where you have to use it (at least i think so, i used the dash thingy to leap between walls where i'm pretty sure you can actually just jump between them somehow)
oh yeah, also the html5 version didn't load for me :( i'm using firefox, just in case that's relevant