I got some really lame ideas, so here goes,
Key Characters:
Fresh Prince - The Fresh Ninja
Jazzy Jeff - The Mystical DJ
IceCube - The Nigga Wit Knowledge
50 Cent - The New Breed Overlord
Olivia - The Backstabbing Byatch
G-Unit - The Evil New Breed
DJ Green Lantern - Evil Bastard
So here's the concept. It's a magical freaking world where Jazz is a mystic DJ with a magical turntable that when twisted keeps the world under control and keeps everything peaceful, probably like a enegy source that keeps the world going. But G-Unit and 50 Cent are evil mother-fu**ers from another dimension G known as the New Breed who wants to take over that world. But they need the freakin turntables so they can use it to inflict evil upon the world by using Green Lantern as the evil DJ who plays negative energy. This way these crazy mother-f**king bastards can rule the world.
But Jazzy, with his mofo powers, realises this and hides the turntables with the Nigga Wit Knowledge, Icecube, who is like a wise old nigga. But 50 kidnaps the mystic DJ (who by the way is lured to 50 by the skank Olivia) and keeps him hostage and says if anyone wants to see Jazz alive, then hand over them the turntables.
So now comes the hero of the plot. It's our very own Fresh Prince who is like the Protective Ninja of Ice-Mother-Fu*king-Cube. So he is the Chosen One to go into the Unit-Lair, an evil, AND DO I MEAN EVIL, place, to save Jazzy. Upon his way, he comes against evil villains like Llyod Banks, Young Buck, Tony Yayo, Slim-Fu*king-Shady, etc. He has to fight his way in, destroy New Breed Overlord, save Jazzy, and in turn save the world. There you go, end of story.
*note* I know it's really lame, so please don't bother to remind me of it.*