THAT GAME WAS TOTALLY AWESOME!
I loved the random circles flying around, I didn't know what to do. I don't know if it's luck or skill, but I managed to get to 2067! I loved the music, that was a good choice.
What if you combined this game with Raiden and had enemies that moved like that instead of just flying past you? That would be cool.
The only thing that should be changed, is the way the maincharacter looks, because it looks too much like the enemies and that's confusing.
I like it because it reminds me of traditional videogames because it forces you to try to get a better score and then rub it in your friend's face until he gets a better score.
I would also add gifts or messages at the end, so that if you lose it tells you that you suck because you couldn't get to 1000, or it makes fun of you until you prove how awesome you are at avoiding circles.
Can't wait to see the sequel.