Tech Romancer Codes -

All characters:
Highlight "Options" at the main menu, then press A(2), B, A, B, Right.

Punches And Love VMU mini-game:
Successfully complete story mode as any character. Go to Tatsumi's Techno Dome to find the mini-game.

Second VMU mini-game:
Successfully complete the game with Dixen twice, using both pilots. A second mini-game will be available at Tatsumi's Techno Dome.

Third VMU mini-game:
Successfully complete the game using all the characters. A third mini-game will be available at Tatsumi's Techno Dome.

Hidden options:
Successfully complete the game as any character in hero challenge mode. Go to Tatsumi's Techno Dome and move to the right. Withdraw some "G", then buy the yellow boxes to unlock options for more characters and additional FMV sequences.