$0.99 Sale Until May 1! A top-down action shooter for your iPhone and iPod Touch! Use your guns, missiles, and bombs to blast your way through 7 large, challenging levels. Fully utilizing the accelerometer of the iPhone and iPod Touch, this game is a nonstop battle through seas, deserts, snow, and mountains against hordes of relentless aliens. Collect powerups to become powerful enough to simply dominate those that would dare invade our beautiful planet. - Uses the iPhone and iPod Touch accelerometer for easy, 1-handed play - Large variety of small, large, slow, fast, and heavily armed enemies - Fast, smooth animation with antialiased graphics - Almost unlimited powerups allow you to dominate - 7 large, varied levels, 3 difficulty settings - Quality, professionally produced music tracks and sound effects - Suspend/Resume feature allows you to pick up from the last level completed - High scores list Fans of old-school shmups and space shooters, this game is for you! Reviews around the Web: The iPhone App Review (9/10) : "Sentry Alpha is a great game. Probably one of the best, if not the best, I’ve played on the iPhone. If you only had $2 to spend, I’d spend it on this." AppCraver (9/10) : "Overall Sentry Alpha makes for an excellent game. It is highly recommended for anyone who wants some inexpensive and engaging fun." Touch Arcade: "It’s somewhat slow paced, but the onscreen action is not sparse. It’s an enjoyable iPhone shooter."