It could be a little flashier, but the game is fully playable by itself at this point. Have fun playing an Atari classic.
Version 1.1:
Made asteroid collision much more exact
Added anti-aliasing (Thank you, Felice)
Made extra lives available after every 5k points instead of 10k
Made the extra lives indicator make more sense (Player has 3 extra lives plus their current one at start)
Version 1.0:
Added an invulnerability period after respawn
Version 0.9:
Added start and play again menu options
Added more sounds (game over and extra life)
Fixed controls working after death
Added scoring system that works to the tens of millions of points
Refactored some code
Version 0.5:
Added level spawning
Fixed randomizing of asteroid velocities
Added player death conditionals
Added respawning
Added a great deal more variation in velocities in general
Version 0.4:
Added randomly generated asteroids (yay!)
Added collision-based asteroid spawning
Added score increases
Added thruster and asteroid explosion sounds
Version 0.3:
Fixed the controls
Retooled how the velocity works (saved x,y velocity offsets)
Added (lame) asteroids
Added collisions
Added explosions!
Made explosions pretty
Version 0.1:
Initial preview posted