Collect every Pepper Medal on a given difficulty level to unlock the Secret Base on the System Map in subsequent playthroughs. The Secret Base contains one of each power-up in the game, as well as the super-secret Homing upgrade for your Charge Shot! Exit the level by pressing Start and selecting "Return to Map". Normal mode contains 13 Pepper Medals. Hard mode contains 19 Pepper Medals. Expert mode contains 20 Pepper Medals.