Zap - Alien shooter

Your mission is to save the earth from attacking alien ships. This is a alien shooter game, and made look like the old days. This game was made in 1997 and never released because that time the computers and phones had the power, now after 20 years the author finally released it. enjoy

HOW TO PLAY:
* Touch screen to move and kill all enemies.
* Collect items to upgrade or change your weapons.

FEATURES:
* Singe player
* High quality images optimized for tablets and large screens.
* Save high score and challenge your friends
* The game is hardcore and have different difficulties.
* Multiple extreme boss battles. 
* Upgrade your guns and lasers