Alpha 2 out !!

Alpha 2 is released ! What's new ? :

- Corrected some bugs

- Added musics (by Hydrogene)

- Added Asteroids

- Changed the boosters look

- Changed bullets look

- Added sounds effect

- Changed the orb when you got the hyper booster

- The spaceship is smaller than the previous version

- The spaceship is speeder than the previous version

- The spaceship movements is more smooth than the previous version

- Changed a bit the UI

- Bonus when killing enemies or asteroids

- Adjustes some others details...