If you have a saved game of Panzer Dragoon Zwei in you Saturn's memory, they following codes will be enabled on Panzer Dragoon Saga:

1. For every hour played in Zwei, you will start out Saga with that much Dyne mutiplied by a hundred. For example, if you played Zwei for 8 hours, you will start Saga with 800 Dyne.

2. The little girl who plays hide and seek outside of Vaiman's will give you a music box. Go back to camp to access the music box.