This was fantastic, especially for something made over a weekend. I enjoyed the basic mechanic, and I thought the environment was really well done. There are a couple of improvements to make, though, the main one being the camera. Although for the most part it functions correctly, at times it was really difficult to orient myself and figure out how to manoeuvre so that the camera was pointed in the direction I wanted. Given that the brain seems to turn on a point, which does make it more difficult to navigate, using the mouse to direct the camera would make it a lot easier to see what's happening while not decreasing the difficulty of controlling the brain. If not that, being able to reverse would be useful. The respawning mechanic is good, but needs some tweaking. I found that I would frequently get hurt again for the same reason as before (sometimes because I was dumb, but frequently because the pigeon was in the same place as last time) but would be unable to heal because I'd used the blood bags already. Finally, it was a little weird that the pigeon could walk through some of the obstacles and would literally chase me all over. I would recommend limiting it to a certain area. Overall, a great and fun game that I would definitely play more if you fleshed it out, really impressive!