Nice game, even as "simple" as it is this early in development. Please add the option of automatically saving to an autosave file if the player desires. I kept forgetting to save and died with 48 hearts. Restored to about 20... ouch. That frustrated enough for me to stop playing (for a while at least). I'm looking forward to more stuff: more armor, a research tree, more dungeons, and of course, more monsters (keep the red eyes of death!).
I don't know if you still need it, but the UI did disappear (health, crosshairs, and map). Save and load restores it.
I like the graphics and concept. The implementation lacks something though in gameplay. Also, I don't really like the fact that as I move my ship up and down, other things move up and down too. Their movement is dependent on mine.
I like the general attitude of the game. Great storyline. I also like what you did with the graphics, especially the background. This is a very good game (I hope mine is better though!!). Good luck!
I love the graphical background and parallax scrolling (I wanted to do this but ran out of time). Unfortunately I don't really like the way it plays. The screen fills with enemy flak too fast. But then I like strategy games more that shooters.
Need to 1)Add a start page; 2) Add scoring; 3) Add collision detection for that scoring; and 4) Add movement limits to keep the player on screen. Don't forget some sound effects too. Good luck!!
Great ideas on your first try! Add limit checks on your plane so it can't go off screen or too low. Start menu is just like the end game menu but place it in your ship.as before the ship is made visible. Good luck. Take a look at mine too.
 "Island Escape beta"){kind=icon}
 "Space Storm V1.0"){kind=icon}
 "Homecoming of the SQUID - Prolog"){kind=icon}
 "Star Shoot"){kind=icon}
 "Blowing Stuff Up.... in Space!"){kind=icon}
 "AyumiloveStory v1"){kind=icon}
 "Havoc Copter"){kind=icon}
 "Alien Shooter 3 (v2)"){kind=icon}
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 "Shooting Plane"){kind=icon}