The Sega Genesis "The Lion King" is one of the best 2D platforms available on the console.  Using the full capabilities of the system it features massive levels and intelligent AI.  This game is not as simple as one may think.  Some levels and I mean the first only you can run through.  After that the enemies and obstacles can be a great danger.  If you happen to run out of continues you must start from the beginning of the game.  Don't worry you have many chances in game to get more single lives and even whole continues that in easy mode = 8 lives.  If that isn't enough this game does support a cheat menu for invincibility and level select.  However the cheat menu is hidden and you have to enter a simple combo at the menu to unlock it.  This game is an amazing feat of the Genesis era supporting stereo audio and separate music for each level all packed into a small cartridge.  This is a great game.