Indeed the game no finished, it is quite tedious to play and it is a pity not to be able to move the player when shooting.
Viewing post in Get A gun, build a house & shoot aliens comments
Yea at start i wanted enemies attacking you while player is moving but integrating "A start" path finding turned out to be too hard for me to do in time, so i kinda improvised, and after trying doing something too complex i kinda went to far in other direction and made something too simple. Instead of making aliens goings in strait line and slowly destroying blocks after colliding with blocks while player is moving(as was it was one of my ideas) i made something like... this... well mistakes were made.