Use the following trick to make all items, staff, and research available instantly and free. Note: This procedure involves editing a game file; create a backup copy of the file before proceeding. Use Microsoft Excel to edit the .CSV files in the "global star entertainmentmall tycoon 2datamodels" directory that correspond to the items, shops, staff, etc. Delete the prerequisites, and change all costs to 0 (should be in Column O). Save file as its original name, and as a .CSV file. Note: If you need to, you must uninstall and reinstall the game to change it back to the original prices.
Cheat Mode
Hold down CTRL and type one of the following codes to activate the corresponding cheat function;
Code - Effect
hdirate - Additional 100 to mall rating
hdicase - Additional 100,000 money
hdidizzy - Alternate view
hditech - Current research completed
hdilore - All research completed