In this retro styled game, your mission is to shoot as many alien spaceships as you can before they smash into your hull. You will be surrounded by 8 alien spaceships, that slowly encroach upon you. Using the on-screen controls, you’ll be able to spin your craft left or right, and use the center button to fire your space canon. The game ends when the first alien ship crashes into your command center.

Changes:

1) Sounds! If you don’t like them, well, too bad for you (just turn down the volume)
2) Improved controls responsiveness (yes, sometimes developers do listen to the users)
3) Screen redesign (to prevent accidental ad-clicking the ads have been moved to the top of the screen (non-accidental ad-clicking is still recommended if you need to buy some stuff :))

Sidenote: At the point of posting this program has been marked as beeing freely available without costs. As this program is hosted with the AppStore the status might change. Authors like to publish their programs for free for promotion purpose and then make it commercial. Also it could happen that the author decides to take the program down.

http://appshopper.com/games/aliens