JoyJoy (4/5 stars, guidance suggested, FREE today only) is today’s Amazon Free App of the Day. From Amazon:
JoyJoy is the new fantastically satisfying twin-stick shooter from Radiangames, creators of Inferno+, Ballistic SE, Super Crossfire, and more.
* 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 and leaderboards.
* Use the smooth, customizable virtual controls or a Bluetooth-enabled control pad to play.
JoyJoy: get it today, while it’s Amazon’s Free App of the Day!