Improves on the first game. Different armors to unlock, more abilities, and stage selection with varied stages. Adds in the new ability to gain boss abilities and to give them a new attack if you beat them while entertaining their stage with an overall S or A rank (ridiculously hard but you have 4 cyber elves that can set you to an A rank). Cyber elves are more practical to use. Element attacks and beating certain bosses can effect other stages. Better music and minor voice acting.