Very cool game.
Not sure if bug: I couldn't heal myself at shops. The interaction message simply didn't show up after I healed in another shop once.
Also some enemies seem to be nearly invincible. One SWAT zombie on the ground took like 200 pistol shots to kill.
A purple rectangle can be thrown but the bullets(?) don't disappear and if you use it too much, it will reduce performance.
Another bug: When I enter the lab there is a black hole, when I jump down I glide down with a parachute... forever. There is no way to progress or abort the fall.
