Advice.
It looks like you took to heart what I said on your first version.
This version is vastly superior on your last one. :)
Lol I will not go on a list what you fixed ;P
You need to change the name of the in-game power up to "Rapid Fire" Currently it displays "UNLIMITED MISSILES/SUPPER MISSILES" when you pick them up. This is inaccurate because they bluntly are not unlimited and they are in fact rapid fire.
Things to add:
A story, explain to us just why/where we are going to/from and just why/how these clouds are a hazard to us.
Oh course story may be one of the things you work on.