Complete level 5.
Complete level 10.
Complete level 15.
Complete level 20.
Complete all 20 levels without losing a life. Death on level 1 allowed.
Complete all 20 levels phantom switching at most 40 times. Death on level 1 resets counter.
Complete all 20 levels within 6 minutes. Pauses on level complete. Death on level 1 resets timer.