Yamcha can't use the SB ... it's only a translation mistake ...
I saw it in german ... he said "Kugel Blitz Torpedo" (word-translation: "Ball Lightning Torpedo")
GOHAN DIED !!! As I said before !!!
1. Old gohan ... from Goku Oozaru
2. Teen Gohan ... Kid Buu destroyed the earth !!! Gohan was on it !!!
3. Adult Gohan ... Look "The History Of Trunks" ... Gohan was killed by A17 and A18
SS:
Full:
Vegeta, Nappa, Radditz, Goku (, Tales, Brolli)
Half:
Trunks (both), Gohan, Goten (, Bra)
Quarter:
Pan
(1/X: Goku Jr. , Vegeta Jr. ... DBGT Special)
Fusions:
Vegetto, Getenks (, Gogeta (, Gojita))
Sorry Krillin .. but I know the whole DB with all specials and movies