Edit the file slots.crd by your favorite hex editor and then go to address 00000019 and 
type (28 01 01) for first slot.

or 00000919 for second slot.

or

00001219 for last slot. As you wish .......

This is the best cheat than ever cu'z you don't need any continue, Coins, Genie token or
any diamond. Because the game saves automatically on every level.