Aladdin

When in the options menu, put the cursor on 'difficulty' then push A, C, A, C, A, C, A, C, B, B, B, B. That will give you a cheat menu. Or, in the middle of the game, pause the game and push A, B, B, A, A, B, B, A. That will skip you to the next level.

level 2-jafar,abu,jasmine,gennie
level 3-gennie,jafar,alladin,abu
level 4-abu,aladdin,gennie,jasmine
level 5-aladdin,jasmine.abu,sultan

Just can't get through the rug ride? Well, to skip the rug ride level, just die 3 times and the game will go to the next level.

Once you have hit the scarab for the first time, run past the spikes until you reach a pillar with a picture of Goofy on it. Jump behind this pillar and it will take you to the merchant. If you run to the left, you will find an extra life.

In the Desert, after you get the first scarab, and go past the two connecting trees, there are 2 columns holding up the higher floor. Kill the snake and go BEHIND the second column. Jump up and you'll fly up the a secret place. There is a merchant there where you can trade gems for Extra Lives (5 gems) or Continues (10 gems). To get down, go to the very left, and there are stone steps that you can go down and continue your mission.