This my first game (2d)

This is a game where you control a blue dot and move around to avoid hitting red enemy's. 

To kill enemy's they must be in your area around player, You can kill everything in your area every 3 sec, SPACE to do that 

There is high score that whenever you get new high score it will update

The game gets harder with time

Available platforms (Windows, Linux, android)

Please if you have any suggestions tell me in the comments