Just a basic top down shooter.
I do have some issues with it:
I can't tell whether the objects that were falling towards me were either projectiles or just background out, because at times I either lost health or I didn't if I interacted with them. Is that a bug?
What exactly was the second bar, underneath the health, for?
I'm not a huge fan of the audio (especially the birds). You don't need to attach an audio file to each and every single one of them, because that would be horrendous if multiple of them spawned on screen.