Great concept. Took me a second to actually understand what was happening and what the goal was. Maybe if there was some sort of particle on the totem when the enemy was on it, something to help visualize that something was happening as a result of that enemy being there. Also having the bullet move faster and look a little bit less like the enemies could make things more exciting. Like I said, great idea just needs a bit of tweaking and it could be a lot of fun! Good job!