Hidden CG images:
Put the DOA 2 in a PC cd-rom and look under the folder Bonus. You'll see hot pics of the females.
Bounciness:
In options, change your age to 99, and you'll see those tits bouncin.
Hidden CInema:
Beat 5-10 characters straight in survival mode. (Your age should be 99). Then name yourself realdemo, when it tells you to put your name in the high score list. Save, restart, and watch Kasumi, 100% ...... (note: The extra uncut scene is the fifth sequence.)
Taunt Opponent:
Left, right, left, R trigger, while fighting.
Full Screen Pause:
Press Start to pause and hold the right trigger. (Try it while one of the girls kick really high).
Change View of Victory Pose:
Hold X and move the analog controller around. Or press B to zoom in. Only works during the victory pose.
Mature Cheat:
Beat the game with every character. Play survival and get ranked #1. Put your age to 19. Play as Lei Fang and at the end of the credits she'll be sleeping with Jann Lee.