*ASTEROID_ATTACK an html canvas based game 1)user operates the ship via mouse pointer and dodges the incoming asteroid to score points 2)player can also shoot the asteroids via bullets and destroys them but big asteroids take more hits than small ones 3)sound interaction is added for better gameplay experience onclick 4)timely upgrade points appear after every 3 seconds and increase score 5)retry button is added at the end and player gets number of asteroid he has destroyed ------speciality of my game is that it doesnot require any game libraries ----everything to the last semicolon is custom built