On the first level of lion king (The Pridelands) pause the game and press B,A,A,B,A,A and you will immediately warp to the next level.
Level Passwords (Medium Level)
Level-Password
The Water Hole-6zkpbm2
Elephant Graveyard-om85vxo
Stampede-2xpofbo
Simba Finds Nala-q83lwzd
Defeat Scar-4scbttb
Save Kiara-b2ktswq
Plains of Fire-4zhhq6v
The Outlands-26tlkro
Defeat Zira-4+4rv2b