Thanks for comments.
Quote: "he bullets from each side, but especially from the aliens are quite hard to see"
Yes, they are kind of wip, and I agree.
Quote: "Are those particles when something explodes are controlled by some kind of a particle system of yours?"
I guess so, I'd not really thought of it as such, but yes, it's hardly complex, but I felt it suited the game.
Quote: "If you ask me this is a real nice first task, but it is time to do something bigger right after this"
Not really my first task, but I'm a big fan of the old style shoot'em ups so this is more of a wistful look back at times past,but I do agree, it would be good to move onto something bigger, time willing.
Thanks again for your comments. I think I might make 1 or 2 changes just to finish this off before moving on.