Blackboard Apocalypse Free

Command a ship and defend the blackboard against hordes of evil chalk invaders!Win points, get upgrades and annihilate them all!Can you do it?Highlights: * Fast and fun shooter gameplay! * Infinite waves of enemies! * Buy upgrades and make your ship even more powerful! * Retro 8-bit style soundtrack! * Progressive dificulty adjusted automatically! * Google Play achievements and Leaderboards! * Suitable for all ages! * Totally free!