OG1 Choker
Turn of your DS and insert the GBA game Super Robot Taisen OG1. then you will receive the OG1 choker on your next new game or loaded save file for Super Robot Taisen Original Generation Saga: Endless Frontier. The OG1 Choker boosts your SP by 100.

OG2 Pendant
Turn of your DS and insert the GBA game Super Robot Taisen OG2. then you will receive the OG1 choker on your next new game or loaded save file for Super Robot Taisen Original Generation Saga: Endless Frontier. The OG2 Choker boosts your HP by 250.