Nappa never made it because he died at the hands of Vegeta, but what if he had made it and gone through all the levels of Super Saiyan?
Nappa as a SSJ and SSJ2
Nappa as a SSJ3
SSJ3 Nappa almost made me pee my pants xD!
This stops at SSJ3 because DBGT shouldn’t exist! D:< (and I didn’t find a good picture of SSJ4 Nappa xD)
A friend shared a similar version on Facebook, but it was too small and I thought I could do better 😉