Well...
This is certainly different...
Though I doubt this will ever appeal to the average Newgrounder due to the lack of sound and VERY low framerate, it is truly a marvel despite its extreme simplicity.
Despite the fact that the graphics in this game are even simpler than Atari standards, and your ship only moves 1 block per second, this game is very challenging and requires actual strategy to play, which is something I find missing from many flash games today...
Though I enjoy sound in games I play, this was truly something special, and if it had been released in the early 70s, It would have been revolutionary!
Well done!