Successfully complete the game to unlock the "Sound Test" and "Voice Test" options at the options menu.Silver Darts
Have a saved game file from the demo version of Lunar: Silver Star Harmony on your Memory Stick. Load the cleared saved game file when prompted after you start Lunar: Silver Star Harmony. Visit Alex's father before going to the Dragon Cave to get Silver Darts instead of the Sling.Infinite money
This glitch is available after you join the Thieves' Guild and reclaim your Dragon Wings. Use the Dragon Wings to warp to Meribia, and follow the path to the southeast, taking the stairs down to the next screen. Then, continue going southeast past Mel's mansion until you reach the end of the road where you will find a small house. Walk through the house, and you will find a red chest in the last room. Open the chest to find 2,000 S. However, if you continue pressing X in front of the chest, you will keep getting 2000 S each time. Repeat this as many times as desired. Note: This glitch is only available for a certain amount of time. The glitch seems to fix itself at some point as you progress through the game.Infinite Angel's Tears
This glitch is available after you join the Thieves' Guild and reclaim your Dragon Wings. Use the Dragon Wings to warp to Nanza Barrier. Exit the town via the southwest gate, and go to the south once you have changed screens. Once you have reached the signpost near the exit, loop back north, and follow the path to a red chest. Open the chest to find Angel's Tears. However, if you continue pressing X in front of the chest, you will keep getting Angel's Tears each time. Repeat this as many times as desired.