iPhone Screenshots / iPad Screenshots
This App appears to have been on sale for several weeks at this price. This may be the App's new 'normal' price and not a genuine sale any longer, or could simply be a very long sale.
* Blast your way through 24 unique waves and 6 intense challenges.
* Upgrade 6 varied weapons, along with your ships' speed, armor, and special attack.
* Choose one of 5 difficulty levels, with 2 bonus difficulty levels (Lightning and Armored) providing new ways to play the game.
* Track your progress with Achievements. Compare your best scores online with GameCenter leaderboards.
* Use the smooth, customizable virtual controls or an iOS7-compatible controller (dual analog sticks required).