I agree with kkcn. I'm a little confused as to what the objective is. It felt like something along the lines of buy a power up, then try to avoid the enemy. It was especially confusing since the first thing the game does is have me buy a power up and I'm not even sure why I need them yet. You kind of explain a little in the description, but for me it was not quite enough. (How do I get money? Is it from escaping the enemy?)
I think others understood it better than me, so I am sorry to bombard you with so many questions. A lot just did not make sense to me.
On a positive, the player character was easy to control and the enemies kept me on my toes avoiding them without being over powered.