Type those number codes on the adventure screen:

 899101     Diamonds
 101496     Gold
 991001     Plutos
 844690     Gems
 101495     Reveal map
 844691     Ore
 101111     Faster

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 Change the following offsets of the savegame in sector 0 to FF

 Gold    Offset 391 & 392
 Ore     Offset 375 & 376
 Gem     Offset 387 & 387
 Crystal Offset 383 & 384
 Sulfur  Offset 379 & 380
 Mercury Offset 371 & 372
 Wood    Offset 367 & 368