Zero Gunner 2 - Platform: Dreamcast

In-game reset:
--------------
Pause game play, then hold A + B + X +Y and press Start.

Replay mode:
------------
Successfully complete the game to unlock the "Replay" option at 
the main menu. Select it to watch the game auto-play.

Expert mode:
------------
Successfully complete the game under the arcade or higher difficulty 
setting to play more difficult levels.

Full pause screen:
------------------
Pause game play, then press X + Y.

New shooting weapons:
---------------------
Collect all the objects you see after the planes explode.

Unlimited credits:
------------------
All you have to do is to play the game several times...the further you 
go, the number of credits increase. At the end, you'll be given infinite 
credits, depending on how many times you've played the game