At the main menu, choose the "Options" selection, and select the "Unlock Rewards" option. Then, enter one of the following codes to activate the corresponding cheat function:

500 Golden Gems

Enter "HDTQ JCLO SSUU" or "SRKC RDZR KZAE" as a code to get 500 Golden Gems each.

750 Golden Gems

Enter "FBRY CMTR KXUQ" or "OAZN CEYQ XRDT" as a code to get 750 Golden Gems each.

Claw upgrade

Enter "PLQO ILQJ YKEQ" as a code to unlock the Claw upgrade.

Electricity upgrade

Enter "WLUA DZCN ZNKE" as a code to unlock the Electricity upgrade.

Head upgrade

Enter "TDFS ZITF BKYE" as a code to unlock the Head upgrade.

Ice upgrade

Enter "PLAL TALG JPZV" as a code to unlock the Ice upgrade.

Mutant Fly/Ant

Enter "CHYV UEMJ QVGM" as a code.

Cyan color

Enter "LYYD UAXR IPRT" as a code.

Green color

Enter "LCYH FVQZ XEVB" as a code.

Red color

Enter "QODI LHGH HNBN" as a code.

Yellow color

Enter "TZCK AXZJ VSTW" as a code.