Unlockable: Homage to Megaman track

You must defeat Crashman in Megaman 2.

Unlockable: Megaman Anime Episode

You must defeat Astroman in Megaman 8.

Unlockable: Megaman Radio Cut track

Finish Megaman 7.

Unlockable: Megaman's Drum and Bass track

You must defeat Clownman in Megaman 8.

Unloockable: Atomic Planet Entertainment Credits

You must defeat Elecman in Megaman 1.