Fun game! Waaaay too fast for my abilities, and the sounds really stressed me out xD But I tried a few times because it was so entertaining. I think I found either a bug or something missing: before the actual game starts (at the small intro), you can make your ship exit the screen through any of the sides, and then that's it for the rest of the game, you cannot come back, just shoot and wait to die, because even when you lose your ships you stay stuck outside the screen. On a  different case, now during the game, you can still exit the screen through the top side, although this time you can come back. Maybe you should close that side too, like you did with the rest, or maybe the ship could reappear through the bottom side I guess. Fantastic job anyways!

Really nice game. Used to love playing these type of games as a kid. I do have a few notes:

• The enemies are a bit too fast. Sometimes trying to react to their fire can be hard.
• Maybe see about using slightly different image for the enemy bullets since a few times I got lost between which were my bullets and which were the enemy ones.