In the beginning I hated the ressources system (having to make components out of metal and food/O2 out of water) this maked me more than once locked as I didn't have any metal/component and no metal extractor... this was so annoying... and then I understood what I had to do and when I had to do it... and repeated it in each mission... : It should be much more complicated : each mission has to be unique, has his own strategy...
I also hate AI, while fighting, while mining even while doing anything, they always act like idiots.
Finally, It's far too short, 6 mission and a bonus level : that's not enough. 15 would be great... more would be awesome... as I played it looks like a big tutorial.
But even with those problems, it's 5/5 for me. with some improvements it would deserve a 7 or 8/5. it would even deserve to be one of the greatest game on kongregate.
I hope my Oh so bad english will help you (programmers, not kongregate players)
... I finished that game once... now I'm doing it again to obtain achievements and at floor 38/40 my computer's battery just felt asleep... * RAGE *.
Anyway, in order to post a constructive comment I would like to tell that I love tough game that you can only finish by focusing. and this one is a nearly perfect one. it reminded me when I first played to the flash game of Portal. simple but effective graphics, gameplay, sounds and that blue button is amazingly motivating. good works guys.
 "Strand"){kind=icon}
 "The Most Wanted Bandito 2"){kind=icon}
 "Streamline"){kind=icon}
 "Mars Colonies Demo"){kind=icon}
 "Give Up"){kind=icon}
 "Zombie Situation"){kind=icon}
 "Tasty Planet"){kind=icon}