Ah, a fellow linux-mancer.
I had a surprising amount of fun barking the physics with the rocket launcher. However I disliked how it sometimes just doesn't fire. The weapon feedback might need some work. Also there is no way to get back to the menu when you're done with the level. Did I miss a button?
Game quality was decent. The open source textures just have this 2000s energy, brings me right back.
Clearly the game suffers most from being unfinished, however I wonder if the lack of enemies (as dictated by the rules) is something this twitch shooter can deal with. What is the point of a shooter if there is nothing to shoot at? What is the point of running, jumping, "exploiting" the physics if there is nothing to run from/to? The tower might have been this something, but felt more like an accident rather then the main course.