==UNLOCKABLES==

-Play in Alien Homeworld-
Play a game on the expert setting and beat Earth. After beating Earth you will go to Mercury. Beat 
Mercury to go to the Alien Homeworld.

-Play in Mercury-
Play the game on the expert setting and after you defeat the Earth Boss you will be sent to Mercury.

-Un-lock Maniacle Mode-
Beat the game on the expert setting.

-Unlock Classic Mode-
Beat the game under Normal difficulty and Classic Mode will appear at the main menu.