Game looks nice, movement is a bit slidy but works for the game as you have to commit to your movement, which I guess is part of the theme (consequences).
Overall, enemies don't offer much of a challenge, they move in fixed patterns and often don't engage with the player, staying on one side of the map whilst you clear the side first.
Game also stopped spawning enemies at wave 7.
As a suggestion should you wish to take the game further; consider limiting the game within the area of the screen, the camera panning didn't really help the gameplay, it only made it more about finding the enemies than dodging their bullets.
As for the enemies themselves, make them a bit more active: either by going from one side of the screen to the other (instead of just giving up halfway), or have them move so they are always crossing the player before changing directions shortly after.
Anyway hope you had fun making this game, I may be nit-picking the negatives but its honestly a good start.