Episode 85 - Gohan Returns
The Come-back of Battling Billson was created in 1935.
Do you mean Freeza from Dragon ball Z because it you do he comes back when Goku is about to come back and when future trunks is introduced into the series.
Trunks because he defeated freiza in a couple seconds when traveled back in time.
Not to advance is to go back
in the end of season 2 Buffy stabs angel and sends him to hell. Then later he comes back, and after season 3, he starts his own show. if you watch all the seasons of angel the end episode is Angel and the gang battling a huge uproar of deamons, we don't know if he dies or not.
You can get shadow Pokemon from battling Mirror B
Yes... Freiza kills him and he is wished back using the dragon balls along with the other namekians killed by him.
Yes his name is Tarble, he was in that "yo son goku is back", thing.
the very last episode for fma1. which is episode 51: laws and promises.
He will be coming back on the episode Back to Max i think.
The episode is Cowdyshack.
its not a episode its a special and its only in Japanese In episode 129 in Dragonball, Goku goes back in time to seek Roshi. maybe that is what you are looking for :)