Game Square Scare online

Purple blocks declared war on you, but you are prepared in advance and provided to be an effective laser weapons that constantly checks the box for the presence of enemy infiltrators. But the developers have not provided the automatic destruction of the enemy, so you have to press the spacebar to destroy the block, where the band will cover it. It takes a certain skill and dexterity. Three missed enemy - the end of the game. Score 10,000 points to win. Time is limited.