Super Robot Taisen OG Saga: Endless Frontier Cheats - Nintendo DS
New Game +
Finish the Game and save at the end when it asks you to. You then can load up that save and start a new game with all your previously accuired Items and Money.
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 boost your SP by 100.
Beat the game once and start a New Game +. Now you can access a BGM Test in the game options.