Cool game. Not very challenging atm but still enjoyable to play.

The core concept is fun, but there are a couple problems, you can occasionally glitch through the map, and a shooting animation for the arrows would be nice. Still, nice game! :)

Nice graphics and the gameplay is weird but once you get used to it it is pretty smooth. I managed to get up top in level 2 and snipe all of the boxes, and then I rained arrows down on the zombies. 

If framerate is too low when new floor is loaded - you fall through the floor and die. I don't know what engine that is, but it has physics, which means you can perform raycasting, so you can use this to avoid situations like this by checking if there was an obstacle between point A and point B between frames. Or may be this engine has build-in feature for this, if it damages the performance, then enable it right before loading and then disable after few seconds.

In Firefox the game's not "grabbing" my mouse cursor. It won't stay inside the game's frame so I can't look around properly.