The visual enhancement

Prior to this update the game was nor really pleasing to the eye, and the asteroids move at unffair speeds. On this update I decided to:

1. Reduce the speed of the asteroids to make it more fair.
2. The text for the timer has been changed into a bar which will decrease overtime.
3. The text of the lives has been replaced for actual hearts that one the loses a life turns grey.
4. The text for the score has been placen on the top center of the screen, made bigger, and changed the color to yellow. also now has score Written alongise its vaslue for easier reading.

I plan on updating this game further, but any support and suggestions would be greatly apprecieted as i want to make a game which can be enjoyd by you all.