Added:

• Split-screen co-op (xbox gamepad + keyboard/mouse)

• Bot assistant (it helps you after "Score 500 points!" achievement is reached. It's not so smart but it can help you)

• Player selection menu (skin, control type)

• New soundtrack (Awesome Force)

• New enemies (including elites)

• New bosses

• New weapon (plasma blaster after 2nd boss instead of disintegrator)

• Voice announcer

• New palettes

• New logo

• New features

• New animations

• Updated some sprites

• Updated game mechanics

• Cheats

Enjoy your stay!

And don't forget to post bugs here if you find some.