Dahna Megami Tanjou/Hidden content
From Sega Retro
- Back to: Dahna Megami Tanjou.
Stage select
On the title screen, press HOLD 
START (the next step won't work if just START is pressed), then highlight "Game Start" and press HOLD 
+
START .
On the title screen, press HOLD START (the next step won't work if just START is pressed), then highlight "Game Start" and press HOLD + START .