Hello, I tested your game and I'd like to answer your questions in the comment below :)
- I found the game enjoyable and fun to play, and I don't think the game in itself is difficult, it's just not easy to kill ten enemies. The fact that they're constantly shooting at me make me flee all the time, trying to kill some of them who where a little alone before the others came. So I didn't really felt in a game where I have to shoot my enemies, but rather in a survival game. Their regeneration and strong use of their shield didn't help ^^"
I found the concept of attacking and defending very interesting, you should develop that further. Maybe in a new version i'd like to see some bonuses (like gaining more ammo, regenerating too, different kind of missiles and shield, speed, etc...), maybe having the cam less close to the ship, which currently take too much space screen. And if the purpose of this game is actually to sweat blood and water by killing one enemy, maybe having a little reward ^^. Oh and showing more clarly our goal, by adding the requested number on the counter (1/10, 2/10...).
I say all this but it's absolutely not negative, I understand you made this demo during a game Jam and you did a great job :)
Sorry for the bad english and thank you,