I really like the top middle one. It looks like it's traveling in the opposite direction as the rest and I can imagine if it was moving across the screen to the left it would grab my attention alot more. It would almost look wrong but not wrong.

Haha... you are right - It looks like I will need to add some code to mirror it, depending on the projectile trajectory direction.

that blue one doesn't need to be as spermy as it is currently being

Ok, I will change it.