Super Robot Taisen OG Saga: Endless Frontier Cheats for Nintendo DS
Complete the game and 'Save' when prompted. Then load your cleared saved game file to play New Game+ where you start the game with your previously earned money and items.
When your DS is off insert the GBA game Super Robot Taisen OG1. You will receive this item after you either start a new game or load a saved file. The OG1 Choker will boost your SP by 100.
This item becomes available when you insert the GBA game 'Super Robot Taisen OG 2' into your DS and then either start a new game or load a saved file. The OG2 Pendant will raise HP by 250.
When you have beaten the game start a New Game+ and the BGM Test will be an available feature at the 'Game Options' meun.