Hey,
cool entry. I can see you had fun creating the game. The ideas are really cool with the spaceship moving to the planets grid based and the different themed planets. But I am on the edge here, the first planet was rather cool with some neat interactions. The last two and esp. the last felt just a little bland - nothing to do except move and fetch. Maybe just two planets would have been better for the time frame. Movement esp. in combination with the combat felt not smooth, I think because of the camera turning when you shoot and maybe also because I found the combat too arcade like duck hunting. I also got a bug where the boss fight did not end and I was trapped forever in the star vortex. Which was kinda funny. :D Even if it was not completely my cup of tea, I can see the appeal it could have too many. Esp. if you polish it up and make the combat more engaging.
So, even if it sounded hopefully not to negativ, nice job on that one. :)