Yeah, I got some ideas for the game while having a computer free day yesterday, so I'll try to make it more playable.
There is a respawn button in the "demo". Just press Enter

The patterns are randomized by having variables for the aspects that define the bullet's path that. Like speed, gravity, direction shifting, speed increase, bullet stream space, spin speed etc. I think I can come up with some more things to make even more random patterns.
I will also make something cool with the player ship, but I'll wait with telling you guys about that untill I've already added it.