There is now a version (Latest version) that features the rocket weapon

Rockets are given in bonus items like this one:

They give you either the rocket, an extra life or some extra score.

I've also updated the spawning of enemies to make it feel more dynamic.
I'd love to hear some feedback on this version! Did you like the rocket? Is the game to easy or to hard, or maybe just right ;) ?
Thanks a million to everyone who has bought and supported this game - you guys are awesome!