The sprites and animations are pretty good, although they are not your original work but at least I can say nice choice.
Enemies seems like random generated which makes the game very hard sometimes.
Overall, nice space-shooter.
Thank a lot, yeah I was pretty happy with the sprites I got lucky to find them fast. As for the enemies, the spawn position, the type(out of 2 XD) and their behavior is random so yeah it can make things hard.
Happy that you liked, next time I hope to be able to create more diversity, since I had a lot to learn I lacked time for polishing and variety.