Amazon Free App of the Day:
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