Awesome little game. Very interesting concept, I liked the expanding player mass of entities, and I liked the risk-reward idea of taking time to make the ultimate player army making the game harder. Graphics were a bit minimalistic (in a non coherent way) but music was really nice.
Overall I thought it was a nice game to play several runs of. Found the enemies a bit difficult to deal with unfortunately (I seemed to be getting shot from off screen a lot of the time).
I could definitely see a bigger game being made out of this with overhauled graphics and UI, and rebalanced enemies/combat.