It seems that you have made quite a play-worthy game here! I like the graphics, the idea, everything! Although, while there was nothing wrong with it, there could have been improvement made to it. For example, I find it a bit dull that there was only one thing you could "buy" with experience. And you could have made the game longer, or at least a bit more challenging. I mean, once you had the full kit so to speak, I beat the game in under two minutes, give or take.
Still, like someone once said: "A designer knows he has achieved perfection; not when there is nothing left to add, but when there is nothing left to take away." That fits really well with this game. Keep it up you guys!