Hellrazor - The beat is way different, both released and OG beats are tight though.
16 on DR - The beat is alot different, but the strings from the chorus are still there.
High Speed - There are less instruments, sounds the same but there's a big difference. The leaked version doesn't have the full outro.
Letter 2 the President - This doesn't have the intro, it's alot more mellow, and has different EDI and Kastro verses. There's 2 Syke verses too. There's also a version available with an extra chorus by Kastro. The beat is almost the same.
Breathin' - Not available, but the song has a different beat and is an unfinished Pac solo.
Until the End of Time - It's alot different, Pac sounds like his flow is different because it's on a different bar. 6.9 does the chorus, it's alot more mellow.
Letter 2 my Unborn - Listen to the Kadafi mixtape, the one on there is basically OG.
Starin' Through my Rearview - Not much difference, except there's like a 3 second intro, and some extra instruments.
Open Fire - The released is just a remastered version, and there are less gunshots in the chorus.
Ghost - I've heard the beat sucks, I doubt that's true though, how would anyone know. Also it's one verse, Eminem split it into 2 on the released.
The Good Die Young - Unheard, but Kadafi is on the OG.
Who Do U Luv - The beat is alot better on the OG, Stretch is cut off the released, Pac's verses are switched around on the released, and he says "Stretch smokin indo" on the OG rather then "steady smokin indo".
Don't U Trust Me - It's very different, alot faster, and the chorus and beat are different obviously. There's also an intro that wasn't on the released.