From StrategyWiki, the free strategy guide and walkthrough wiki

• Move Terry
• Move the cursor on menus and lists

• Confirm commands and options selections
• Talk to people
• Examine things

• Cancel commands
• Close windows

• View the Map Of The Mystic World
• Organise the items you carry in the Item Window

• Toggle between HP/MP and Level Window
• In the Main Menu, display the Joined Monsters Window

Note: You can reset the game by pressing the and buttons, and simultaneously.