This page here will share minor tidbits, tricks, cheats and hints about Aladdin. As with many of the other guides on my website these are designed to be very google friendly. If you're stuck, and googling to to get done a certain part of the game, that's hopefully how you found this guide!
Aladdin Level Passwords
All passwords work and are the same regardless of if you've unlocked them in the game yet.
Bonus Level: Magic Carpet Ride - Jasmine | Jafar | Sultan | Jasmine
Level 2: Cave of Wonders - Genie | Abu | Aladdin | Sultan
Level 3: Escape from the Cave of Wonders - Jafar | Abu | Jasmine | Genie
Level 4: Inside Genie's Lamp - Genie | Jafar | Aladdin | Abu
Level 5: Ancient Pyramid - Abu | Aladdin | Genie | Jasmine
Level 6: Jafar's Palace - Jafar | Jasmine | Aladdin | Jafar
Final Level: The Final Battle - Aladdin | Jasmine | Abu | Sultan
Easy Extra Lives
When Aladdin and Princess Jasmine are riding the Magical Carpet in the bonus stage watch genie and wait for him to blink. If you press the B button when he blinks you'll be given an extra life.
Unlock the Special Ending
Finish the game with at least 70 red gems to unlock the secret ending.
You need two controllers for this apparently, but what you'll want to do is press the following buttons on controller 2: L, R, Select, X, Y, A, B then you'll want to switch to controller 1 and hold the L+R buttons while using the D pad to select your level.