How do you unlock the characters between shadow and the red robot?

I've beaten the game on both sides of the story mode and i've played over 200 hours and haven't got them.

Submitted Answers

From cyan_warrior on Aug 11, 2009 5:09 am GMT

To unlock NiGHTS, Ulala and Aiai you have to play all of the Storm, Wave and Jet Missions. After you beat them you get these three characters.
From radioshack321 on Sep 11, 2009 4:29 am GMT

I got them if i remeber corectly u get them either by buying them or u earn them by doin special missions idk i dont have the game anymore cuase my idiotic bro traded it
From Shadethecat on Sep 18, 2009 10:16 am GMT

Complete all of the missions in mission mode for the three between the green robot and if you have the red robot then I'm guessing you have the green robot
From btaylor2010 on Sep 17, 2010 12:58 am GMT

The only other advice that I can think of to offer you is to complete 100 races and make sure you have got all gold medals in Mission Mode for all 3 characters. If you have played for that long and have completed both story modes, then this should surely unlock the characters you haven't got yet.

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